"C" stamp and CAGE code available. I've thought about it myself, and I'd like to see test results if any exist, displaying what reliability effect M4 ramps have on other barrel lengths. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. It's best to use rifle/rifle combo or M4/M4. 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. The rifle-platform M16s dont use them. 's blog. Good call. The M-16/M4 are great weapons. I didn't forsee that we'd ever see the day when replacement parts would be so hard to get. I'd get jams from bullets hitting the back of the upper so I took a small round file and made the M4 ramps in the upper. $101.95. pictures would help. Feed Ramps -300BlkTalk Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. It's best to have M4 ramps on both the upper and barrel. Modify AR15 A2 barrel extension for M4 feed ramp? Looking to spend $180-250 (depending on condition, forge mark and if a rear sight is included or not.) . 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. Thanks. If you have a m4 ramped upper but not barrel you can cause problems as there's a lip of steel barrel extension in the way that can cause feeding problems. 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. Watch a video about our Modern Series AR barrel: 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. Thats true overall and good to keep in mind. No need to alter the upper. In case My barrel is rifle ramp it won't be so bad after all. All uppers are assembled cleaned and tested before shipping. Product Details Douglas 18" Flat Dark Earth Cerakoted 416 stainless steel barrel with 1-7 twist and M4 feed ramps. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. again, Thanks. This is one time it's better to go a little too far than to leave an edge for the . Create an account to follow your favorite communities and start taking part in conversations. M16's fed pretty well before the M4 feed ramps were introduced. Seems like it should work to me, but be a real challenge to keep clean and be damned ugly to boot. I cant advise on that one folks. I have a non ramped barrel in a ramped upper, feeds fine. What's the difference? I can assure you that most mods that deviate from the original design aren't 100% reliable. By Yamil Sued August 6, 2021. Any use of this content without express written consent is prohibited. 338 and others not the .308 76251 or 6.5 creedmore which o think should have a.30cal feed ramp.? Shopping with us is absolutely safe - you never have to worry about credit card safety when shopping here Share your latest AR build or photos from the range with #RangeDayFriday for a chance to win a new firearm! Description Genuine 14.5" SOCOM, carbine length gas system barrel from Colt. The M4 style feed ramps and barrel extension provide consistent feeding and the matte black Manganese Phosphate finish resists external corrosion and oxidation. 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? I've been thinking about doing sort of an "Early Diemaco C8 carbine" clone build with a C7 style upper receiver. Read Now. Earlfillmore 13 hr. Copyright 1996-2023 AR15.COM LLC. Barrel is medium SPR profiled barrel, threaded with a 1/2-28 thread for the AE brakes and collar. I recently built an AR9 (Glock Mags) that has been running flawlessly for about 3-400rds. Feeds flawlessly. You need to match up barrels to receivers for optimum performance. Recommend using a gunsmith this route too if you are not comfortable. Figuring Out Feed Ramps | Feed Ramp Tips | The Shooter's Log Feels like a silly question now that it makes sense. M4 feed ramps will extend the barrel extension and the upper receiver. I use it for hunting dogs only. For someone who is new at trying to understand feed ramps it helps to read a couple different explanations. 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. Product Description Surplus Colt 14.5" SOCOM, carbine length gas system barrel from Colt. Caught a deal on a matched barrel and bolt. Any use of this content without express written consent is prohibited. Its fine to use an M4 Barrel with a non-N4 (rifle) upper but if you have the barrel already is much simpler to just buy a M-4 upper and just replace the upper the barrel is harder to build..I have even cut ramps on a rifle upper and it really wasent needed That is before I knew better.Then I guncoted the ramps before I found out about Aluminum Black treatment. *Must have a registered ARFCOM account to win. 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-. 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. Please allow 5~10 days for assembly and testing before ship date. First, the M4 barrel and non-M4 upper isnt likely to cause issues, but due to the relief cut on an M4-spec upper, there will be a gap that works like an edge that most definitely can snag the bullet and stub the round. FN AR-15 5.56X45mm Nato . "A Bad Day At The Range Is Better Than A Great Day Working". Barrel, sight and trigger work on most pistols and shotguns. Oh well, as I tell my lovely and understanding bride, guns are relatively free. it's the ammo and training that cost real money. Description. 6.5 Grendel Type 2 | 16" Black Nitride | 1:8 Twist Carbine Length Gas AR15 20 inch Upper Receiver Group (SS) w/ Handguard | BCM Ok, So, in short, I've got a barrel on my Armalite upper (with M4 feed ramps in the upper) that has standard AR-15 (non-M4) ramps. You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers. So, I had purchased a 458 upper. I have looked and looked and looked. Your email address will not be published. M4 Feedramps - AR-15 Pro The M4 ramps, if I am not mistaken, were originally made to help reduce malfunctions on the M4 carbine. M4 barrel to non M4 receiver is fine, but not the other way around. Its highly recommended to put any AR-platform firearm together with a matching M4 barrel extension and upper receiver set. Edited April 27, 2014 by Mark Gale 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. is the m4 feedramp common in barrel extensions? As a result, the factory machined M4 feed ramps on the receiver are hard coat anodized which adds significant strength to the aluminum. If I was concerned with precision, I would seek out parts from well-known gun makers and customizers Baer comes to mind, Hart barrels, etc etc. Upload or insert images from URL. I wouldn't be concerned at all with any wear after modifying an upper receiver. So I'm thinking I ought to have M4 ramps in the gun because based on what I've read: Rifle receiver+M4 barrel = "OK" but not ideal. 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. M855A1 5.56mm NATO Penetrator Ammo Feed Ramp Issues: Real, Hype or just BUT if you find someone to grind your feed ramps and they do a good job, post it up and let us know. Then the manufacturer discontinued the barrel. Looking For Bear Creek Arsenal Barrels Review? Its also recommended you polish the ramps once youve achieved the appropriate angle. He had more to say and added some more engineer and gun designer speak too. In short, if you have a Dremmel you can do it yourself. 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. Personally, I would sell the rifle upper and buy an M4 upper - the cost will be small and you will end up with a more satisfactory end product. Single Action and Double Action Which One Is Better For You? pm me at BOG or PG, or get in touch with my number 09177542777 if you're interested. Ar-15 Manufacturers Should Be Avoided: Which Should You Buy? AR9 - Help diagnosing feeding issue. If I can correct an issue before it's an issue that is preferred. I notice that's a Gibbz (or Gibbz-type) upper. True, which is why they're not even needed in semi autos. Sorta. Notice how the ramp starts on the barrel extension and not in the receiver. When I function tested it the first time with live half-jacketed rounds I had the worst FTF jam I have ever experienced. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. It's near impossible to replace the carry handle upper I have these days, and finding a colt chrome lined 20" light weight barrel isn't a walk in the park either. Barrel customizations are also available. Issues can arise when receivers and barrel extensions are mismatched. Gas block area is .750 diameter. For instance I was looking at the BCM upper receiver, and it said it had M4 feed ramps machined into the upper. It is a tightly machined and polished piece of metal which guides a cartridge from the top of the magazine into the firing chamber of the barrel. All we do is dremmel it to match - we dont remove it and grind to any specific angle. These units actually feature the NON-F-Marked (correct) front sight base. . Should not be too hard. I recently picked up a barrel that I thought had M4 feed ramps, but it doesn't line up with my M4 feed ramp upper. An older-version (or A2-style) feed ramp is cut only on the barrel extension itself (top). I like getting another Upper idea then you could end up with two rifles! If you have a bolt that you would like to use you are welcome to ship it to us for accurate headspace. Lol. All Rights Reserved. from my service in the 70s to my personal weapons, all of my ARs are early 1970 slab sided Colt SP1s. 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. AAC and anybody else that has any reasonable expectation of quality and reliability use an M4 feed ramp. I don't have much to add re: feed ramps, but. You want them to match. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Notify me of follow-up comments by email. Try this little exercise: 1. The good idea is that the round, presented at a lower plane, will contact other lower feed ramps and go right on in. Press question mark to learn the rest of the keyboard shortcuts. What is the difference between Modern, Performance, and Premium Series Barrels? The M4 Style Feed ramps And Barrel Extension Provide Consistent Feeding And The Matte Black Manganese Phosphate Finish resists External Corrosion And OxidationLength: 14.70"Model: AR-15Finish: Manganese PhosphateBarrel Type: Carbine LengthBarrel Features: Chrome-LinedManufacturer: FN Mfg Number: 20-100405Model: AR-15 . 2. Douglas 5.56 Stainless Steel Barrel 18" - 1~7 twist All this basically means is that the ramps continue from the barrel extension down through the upper receiver tonthe magazine. Feed ramps on barrel extensions are a good example. I will check with compass lake. Full M4 feed ramps start on the upper and continue onto the barrel extension. Is it worth the extra 50 bucks?" Your discussions, feedback and comments are welcome here as long as they are relevant and insightful. Thats why AR10s- And Scar heavies exist for. May 17, 2008 in The Armorer. Not all mil-spec features advertised on the product information are the real mil-specs. Colt LE6920SOCOM M4 Carbine 5.56 16.1 Barrel SOCOM Sight 30-rd You will be able to leave a comment after signing in, AR15Armory.com To conclude, the M4 feed ramps bring a lot of improvements to the AR-platform firearms. 2. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. I've seen uppers with and without anodizing on M4 ramps . it seems to me to be about 50/50 with and without. Anodized red parts. Mil-spec is good for the masses, and if you want the job done it is a great start. Upper Receiver WITHOUT M4 Feed Ramp Cuts? - Sniper's Hide Forum Pasted as rich text. Get The Best Trigger Pull Gauges To Make Every Shot Count. When you need to nail something you use a hammer not a wrench. By AR 15 16" .350 Legend Nitride M4 Profile Barrel 1:16 so im thinking I might as well just get the unramp upper. I would only add the feed ramps to the receiver if I had feeding issues, which you should not have. -The Barrel MUST be removed from the Upper Receiver in order to use this Kit.-Never cut or polish the aluminum M4 Feed Ramps in your upper receiver! The rifle receiver, doesn't have ramps on the receiver, they are only cut into the barrel.
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