Higher pressure equte to parts (bcg, buffer, buffer spring, ROUNDS, etc) experiencing much higher wear/tear. It is removeable with a special wrench and a barrel clamp/vise. What is the difference between Modern, Performance, and Premium Series Barrels? All NFA rules apply. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. As they are becoming more and more a standard, and certainly do not do any harm to us. - The Shooter's Log, 2012 SHOT Show Special Report: Del-Ton TRX Rifle and More! The best case is to have both an upper and barrel that have the feed ramps. check out the. AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16 JavaScript is disabled. Your discussions, feedback and comments are welcome here as long as they are relevant and insightful. Metal cases ammunition such as Wolf through an M4 clone? Damaged Ak front end Barrel in Trunnion with or without sight bases. Copyright 1996-2023 AR15.COM LLC. I too built a .458 SOCOM carbine . Feels like a silly question now that it makes sense. Married pretty well with my Seekins machined lower. For someone who is new at trying to understand feed ramps it helps to read a couple different explanations. 2. While I've got everything apart, I'm thinking I just want to put an M4 barrel extension on. It is milled out of 6061 T6. This includes M4 feed ramps, barrel nut, front sight tower and sight post, and -28 threads for a muzzle device. The ramps on the regular rifle-type extension are cut just to the edge of the extension. Then the manufacturer discontinued the barrel. instead of mil-spec. I read in Bravo company that there are 2 kinds of flat top upper. I didnt think anything about it having M4 feed ramps. An upper without feed ramps can be used with a barrel that has them as the majority of the ramp is on the barrel extension. I recommend putting any AR-platform firearm together with a matched M4 barrel extension and upper receiver set, just because you can. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. The barrel Throat is the second most critical component after angles and should be polished with utmost care. Amazing what happens in a thread over a simple question. America's Ultimate Shooting Sports Discounter, Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Pinterest (Opens in new window). How to Polish a Feedramp Quick and Easy | Firearms Talk M4 feed ramps are not an original design, they were designed for the M4 In fact, the . I didn't forsee that we'd ever see the day when replacement parts would be so hard to get. I think you will find that the tip of the bullet clears the M4 cuts in the upper receiver by a wide margin. There are now thousands of upper receivers and ready-to-use barrels that have the cuts of M4 feed ramps. I put together a second AR9 that is having a feeding issue, even if using similar parts as the first one. It's best to use rifle/rifle combo or M4/M4. You are using an out of date browser. I think you will find that the tip of the bullet clears the M4 cuts in the upper receiver by a wide margin. RTS Bartlein: 6mm ARC 26" - Compass Lake Engineering, LLC I am having a tough time finding an in-stock barrel (18 or 20 incher) with a rifle extension on it. Little polish. Home Firearms Figuring Out Feed Ramps. Contents: 1 Diamond Burr (For Colt 2 Stage Ramps) 1 Cut Lube (For Diamond Burr) 1 Bullet Stone (For Reshaping . The M4 cut extends down beyond the edge of the barrel extension (has a scalloped appearance), and a correspondingly deeper cut in an M4-spec upper receiver effectively extends the ramps downward (they're lowered). Single Action and Double Action Which One Is Better For You? I had seen these pix years ago and dismissed the idea of mix and match. Modern Series Barrels. [WTB] Black A1 carry handle upper NON-m4 feed ramp $200 http://www.ar15fornoobs.com/wp-content/uploads/feedramps.jpg. Add 3% to the total cost for credit card purchases. Olympic Arms Upper receiver with rear sight assembly and forward assist and dust cover has M4 feed ramps $260 View attachment 1016575 View attachment 1016576 Use this M4 Barrel extention with M4 feedramps. So, lets glide down these lines below to erase your misconceptions about them. They are also 1/7 twist, 4150 steel, chrome lined, and button rifled like the real deal! All this basically means is that the ramps continue from the barrel extension down through the upper receiver tonthe magazine. That's an important thing since without the feed ramps, issues can arise when receivers and barrel extensions are mismatched. Figuring Out Feed Ramps | Feed Ramp Tips | The Shooter's Log All Rights Reserved. Then you can get a regular rifle barrel for the upper with no ramps. Please be respectful of others. The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel. If you ever have an issue, then look at getting a correct barrel for the upper. Go slow and you'll be done in no time. Does NOT include pin AR-15 Barrel Extension Question - Sniper's Hide Forum M4 M-4 Feed Ramp Jam with 55 gr grain Bullets, Solution, Fix, AR15 AR-15 Stuck Cartridge iowaunemployment 21K views 10 years ago Comparing AR15 barrels -Faxon vs. Bear Creek arsenal-. Can someone recommend or point me in the right direction of a good quality upper receiver for an SPR build that does not have M4 feed ramp cuts in it? Reddit and its partners use cookies and similar technologies to provide you with a better experience. Go back to writing school. Some barrels I see for sale say they include M4 feed ramps, and some uppers say they include them too. You wrote that much to make a point that should have taken about 100 words? The difference between standard feed ramps and M4 ramps is easy to see. ago Costs about $40-50 to have the feed ramps reprofiled from what I can gather. 50 bucks one way or the other on the barrel ain't squat! There is a picture of the various options, hopefully another poster can link them. Feed Ramp Polishing - How To Do It Properly? - Homestead & Prepper But, as with anything else, this work can go too far. AAC and anybody else that has any reasonable expectation of quality and reliability use an M4 feed ramp. I use it for hunting dogs only. If it was some flat top + 16" FSB barrel id just swap upper/barrel, but this is a little more challenging to do that with. Feedramps, proper staking of castle nuts, forward assist (yep went there)S-happens seen it. So I'm working on my first build, and I'm a little confused. On the other hand, I wouldn't consider them as a deal breaker, and they would not pass up a good deal with an upper only because it did not have them - the M4 feed ramps. The M4 ramps, if I am not mistaken, were originally made to help reduce malfunctions on the M4 carbine. They offer a lower, more extensive, and smoother entry for any round of ammo, whether its necessary or not. from my service in the 70s to my personal weapons, all of my ARs are early 1970 slab sided Colt SP1s. Please allow 5~10 days for assembly and testing before ship date. Theres a bit more to it than just polishing. I can probably get the upper reciever first. He had more to say and added some more engineer and gun designer speak too. Regular feed ramps are cuts into the barrel extension only, which allows guiding the round into the chamber during loading, making them a fundamental feature of many breech-loading firearm designs. Inadequate knowledge about these feed ramps can lead to lots of problems with barrels because they are essential parts to guide the bullet up and into the chamber. I think your mistaking that with adding ramps to the receiver. I would only add the feed ramps to the receiver if I had feeding issues, which you should not have. Now, theres nothing wrong at all with a little polish on any and all feed ramps, which can not only be done fairly easily, it can be successfully done by most at home. "A Bad Day At The Range Is Better Than A Great Day Working". Seems M4 is all the rage these days. Sent back again. 11.5", SBN, 1:7, 5.56 NATO Barrel The manufacturer said they had sold hundreds of barrels with out problems reported. And that the M4s and M4A1s are issued M855 which has a slight difference in bullet shape vs. the older 55gr M193 BALL. is the m4 feedramp common in barrel extensions? Editors Note: This article was originally published in January of 2019. Again, youll find plenty of videos on spooling up hand grinders to remedy feed ramp and ejection port issues with these larger cartridges, but I strongly suggest going factory-done aftermarket. Related: If you are using a Ar rifle, best green laser sight is good choice for hunting. if you are OK with 3MOA, you might go 20,000 rounds! So, what youre saying is that an M16 upper (not M4 cut) will work with either barrel, but an M4 cut upper will only work with an M4 cut barrel. Costs about $40-50 to have the feed ramps reprofiled from what I can gather. Modify AR15 A2 barrel extension for M4 feed ramp? Create Account; Log Out ; Log In ; Wishlist 0; Shopping Cart 0; Home; About Absolutely nothing to do with casing diameter, or whatever other weird sht you guys imagine. All Rights Reserved. Description. Using an upper with M4 feed ramps with a barrel that does not have them will lead to feed problems as it creates a ledge/lip that can catch the bullet tip as it tries to feed. However, if youre wanting to rebarrel a non-M4-cut upper with an M4 feed-ramp equipped barrel, or going the other direction: you have a new upper thats been relieved to fit with the M4 ramps, and a non-M4-cut barrel extension, and that wont work! FN AR15 barrels are hammer forged using the same proprietary high-grade Chrome Moly Vanadium steel used in FN's venerable machinegun barrels produced to handle the punishment of . A4 Complete Upper Receiver. By the time you made it work you spent more time, money, and effort than if you just bought a new barrel or upper. The closest brand new barrel you are likely to find is the Windham Weaponry 20 inch 1/7 twist chrome lined barrel. The angle is going to be key, alot of people attempt to mimic the angle of the barrel feed ramps, this is incorrect. Notice how the ramp starts on the barrel extension and not in the receiver. The barrel is supposed to have the M4 feed ramps. well.. it's kinda hard to get stuff in this part of the world. Is it kosher to add M4 feed ramps to a standard upper to match an m4 ramped barrel? You have the option of barrel type, thread, fluting, finish type and to add a match bolt. EDIT: Okay, I understand now! A4 Complete Upper Receiver - 7075 Forged A4 Flat Top Upper Receiver - M4 Feed Ramps Includes: - Add to Cart. They were not intended to be super long range man killers. I just need a little guidance on this and I'm having trouble getting good results from Google. Description Genuine 14.5" SOCOM, carbine length gas system barrel from Colt. Bear Creek Arsenal Barrels - 6.5 Grendel Type 2 Barrel This Gorilla Machining AR-15 16" heavy Black Nitride 6.5 Grendel barrel has a Carbine length gas system with a 1:8 twist. M4 can better explain their benefit, although they help with more reliable feeding. Feed ramp - Wikipedia By using the M4 feed ramps for your firearm, you could pick up an increased percentage of the rounds, and feeding reliability would be improved. Try this little exercise: 1. Get The Best Trigger Pull Gauges To Make Every Shot Count. For this test, I used a Colt upper with M4 feed ramps and a SOCOM heavy 14.5 barrel, just like what is used in the military. If this is your first visit, be sure to I've seen uppers with and without anodizing on M4 ramps . it seems to me to be about 50/50 with and without. Rifle vs m4 feed ramps - AR15.COM The M4 receiver feed ramps are cut at a steeper angle and, as a result, extend down into the receiver wall. Factory said its fine . As suggested, its best to match the upper and barrel extension no worries that way. Thats an important thing since without the feed ramps, issues can arise when receivers and barrel extensions are mismatched. Just because you can, doesn't mean you should. That puts the cartridge in a position where the extended feed ramp improves the breech-loading design. The extension is the part at the end of the barrel that fits inside the upper. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. A feed ramp is a basic feature of many breech loading cartridge firearm designs. An upper without feed ramps can be used with a barrel that has them as the majority of the ramp is on the barrel extension. Create an account to follow your favorite communities and start taking part in conversations. You can run M4 cut barrels with rifle receivers, but not the other way around as it will create at catch that can hang up the bullets. I will attest that a rifle upper and a barrel with the M4 feedramps works just fine. The good idea is that the round, presented at a lower plane, will contact other lower feed ramps and go right on in. Thats receivers, bolts, and on down the list of the 100 or so parts that can make up an AR-15. So I called. For a better experience, please enable JavaScript in your browser before proceeding. Featuring hand lapped 1/8 twist rate button rifling and M4 feed ramps barrel extensions, the 410 stainless barrel gives the shooter the best balance of weight and accuracy. These Mil-Spec M4 feed ramps are part of the original CNC manufacturing process. I'm assuming that you only need the ramps from one or the other. The last is using the best and right ammo for the job. The ramp angles are different and changing the profile of the extension doesn't make it something it isn't. M4-style barrel extension with Rifle-type upper - Rifle - Technical Man, its crazy how many of yall have absolutely no idea why you do what you do. FN AR-15 5.56 NATO 20" Hammer Forged Barrel - Black AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types. You can modify the upper, but bear in mind that the un-anodized aluminum surface will be very soft and prone to wear if your particular bullet hits it frequently. Given that most of us dont always have perfect access to truly genuine Mil-Spec, mil-standard parts (those actually used in issued fighting tools), were shopping based on a little part trust and a bigger part knowledge. You want them to match. Barrel is medium SPR profiled barrel, threaded with a 1/2-28 thread for the AE brakes and collar. Being a Newbie AR owner ((Ive been an avid gun owner for nearly 50 years), I appreciate the information and visual aids that Im sure will be a big help in enjoying and using this gun platform. Adding M4 feedramps to A1/C7 upper - M4Carbine.net M855A1 5.56mm NATO Penetrator Ammo Feed Ramp Issues: Real, Hype or just Making a non M4 feed ramp barrel work in an M4 feed ramp upper. The best case is to have both an upper and barrel that have the feed ramps. "C" stamp and CAGE code available. One of the AR15 engineers under Gene Stoner pretty much said that the M4 isn't a good platform, especially once the gas port erodes a bit. Ideally both. CUTTING M4 RAMPS - YouTube The ramps are in the barrel extension. Come join the discussion about racing, builds, pro mods, hot rods, events, turbos, nitrous, superchargers, and more! There's a 7 degree difference between standard and M4 ramps. The information provided here does not represent the views of Cheaper Than Dirt! You CAN modify a rifle/A2 barrel extension to an M4 style extension, but it isn't always the best way to go unless you just have to do it. The Shooter's Log, is to provide informationnot opinionsto our customers and the shooting community. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. If your mag catch is at Spec height, you should not have a problem with an M4 cut barrel in a rifle receiver. We reserve the right to edit as appropriate, delete profane, harassing, abusive and spam comments or posts, and block repeat offenders. Your previous content has been restored. PRI MK 12 Mod H 16" 223/5.56 Upper w/ 1-7 twist AR Tech Tip - Checking M4 Ramps for overhang - YouTube You can post now and register later. Does it make a big difference? Good call. It's not worth changing the barrel extension on an already finished barrel, getting the new barrel extension to line up correctly with the gas port will probably cost more in gunsmithing/machining fees than buying a new barrel. No need to alter the upper. AR15 Feed Ramp Cut & Polish Kit - School of the American Rifle Del-Ton, Inc. AR-15 16" M4 Custom Upper It's best to have M4 ramps on both the upper and barrel. Dec 17, 2020. Also, barrel life is relative. Is one better than the other? Sorta. Does anyone have a follow up that confirms or denies my claim? For those who have actually done it will a new barrel with the M4 feed ramp extension function properly with an old school rifle-type upper receiver? The upper is designed to have two levels of top rails for mounting of night vision in front of scopes. DSA has fat top, Mueller, non feed ramp uppers for $40. Thats why AR10s- And Scar heavies exist for. Some suggest taking a grinder to the extension area. This includes M4 feed ramps, barrel nut, front sight tower and sight post, and -28 threads for a muzzle device. Paste as plain text instead, The magazine lips cannot move, so with these larger diameter cartridges, the bullet tips down lower about the centerline of the bore (half of the diameter increase to be exact). colt A1E1 733 uppers didn't have extended carbine feedramps ? Anything else you want to share about M4 clones would be appreciated, especially when it comes to a reliable rifle. After two months of back and forth, cleaned up the feed ramps. It has ran flawlessly (barring tuning of the gasblock when new) with several different brands of magazines and ammo. You need to match up barrels to receivers for optimum performance. I can assure you that most mods that deviate from the original design aren't 100% reliable. If a barrel comes with the feed ramps could I take them off? Most work performed while-you-wait, evening and saturday appointments available. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Machined from 4150 Chrome Moly Vanadium Steel and feature a QPQ corrosion resistant finish and QPQ coated M4 feed ramp extension. CARBON-15 Stripped Lower Receiver This USGI modification was done to both the barrel extension and the upper receiver, creating a longer and steeper feed ramp. This Kit is made to cut or polish the STEEL Feed Ramps on your Barrel Extension ONLY. Barrel Length: 16" Barrel Material: 4150V Chrome Moly Vanadium Steel Barrel Finish: Phosphate Barrel Profile: M4 Chamber: 5.56 NATO Twist Rate: 1 in 7" Extension: M4 Gas System: Carbine-Length Gas Block Type: Low Profile .750" Diameter Upper Receiver: Forged 7075 T6 Aluminum Receiver Style: M4 Flat top with feed ramps Receiver Finish: Hardcoat Anodized Adding feedramps - M4Carbine.net Create an account to follow your favorite communities and start taking part in conversations. . 6.5 Grendel Type 2 | 16" Black Nitride | 1:8 Twist Carbine Length Gas Any body need a anchor for a very small boat? Ballistic Performance of Federal Punch .22 LR Ammunition with the Heritage Barkeep #1063. For a better experience, please enable JavaScript in your browser before proceeding. I built the upper using a Mega upper with a Compass Lake 18" barrel. BCM 14.5" MK2 Upper (Standard) w/ 13" MLOK Handguard - FDE M4 barrel to non M4 receiver is fine, but not the other way around. Having been in military supply, I know that what the mil-spec means: it gets the minimum job done for thousands (millions) of parts/systems. Installing a Luth-AR Rifle Buffer Tube and an A2 Stock #1041. I have done the same, protect the Barrel extension with a layer of electrical tape and carefully file or Dremel the ramps into the aluminum receiver. Looking for a black stripped A1 upper with non m4 feed ramps (just realized the upper I have wont work with my barrel). Here's some info from Randall Rauch aka www.ar15barrels.com, if your barrel extension has M4 ramps you should have an upper receiver also with the ramps. Your email address will not be published. M4 Barrel Extension (M4 Feedramps) - Bravo Company USA The Bullet ~ Handguns, Rifles and Shotguns, http://thearguys.com/ar-facts/m4-feed-ramps/. I've modified barrel/receivers even before M4 cuts came out and done some receivers when the barrels had cuts. The barrels also had to be modified. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Owning Best Ruger SR9c Accessories Can Change Your Life. Powered by Invision Community, M4-style barrel extension with Rifle-type upper. Bullets tend to bump, snag, and stub on these guns. I notice that's a Gibbz (or Gibbz-type) upper. Barrel customizations are also available. Either way is good and both types work great with semi auto only guns. By You need to match up barrels to receivers for optimum performance. M4 Feed ramps on barrel extensions are a solid example. Not all mil-spec features advertised on the product information are the real mil-specs. Its highly recommended to put any AR-platform firearm together with a matching M4 barrel extension and upper receiver set. However Ive built numerous ar15 and lr308 rifles and pistols. All things being equal and having used both weapons extensively, Id rather have the feed Ramps. I'm a machinist in the aerospace industry and lucky enough to have unrestricted access to a really nice machine shop so the modification from rifle to M4 feed ramps is no sweat, I've done it once before a few years back with a .250" carbide cutter in the mill for a friend and it came out looking indistinguishable from a true M4 extension.
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