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Posted: 7/21/2013 2:26:16 PM EDT
I want to start an A2 build, but am having trouble finding a 20" barrel with the 1:7 twist ratio in 5.56. I guess a lighter one would be OK, but I like the idea of heavy, a little better heat dispersion I think.
Any leads? |
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Keep checking with BCM and PSA, that's what I'm doing. I am a couple/few months away from buying one myself, but I'm going with either of these two.
A year or two ago I recall hearing about a lot of FN rifle barrels on our EE, I wished I had jumped on that back then. |
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I realized early on in my A2 build that I wouldn't be able to justify the expense of a government profile 1:7 twist barrel, so I just bit the bullet and bought an HBAR 1:9 barrel and called it a day. Techinically, not correct, but it does shoot well. Only draw back is it isn't threaded, and its a bit heavy.
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I realized early on in my A2 build that I wouldn't be able to justify the expense of a government profile 1:7 twist barrel, so I just bit the bullet and bought an HBAR 1:9 barrel and called it a day. Techinically, not correct, but it does shoot well. Only draw back is it isn't threaded, and its a bit heavy. View Quote I've seen some threaded 1:9 barrels somewhere, does the longer barrel help stabilize heavier bullets out of that slower twist? What's yalls opinion on that? |
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I've seen some threaded 1:9 barrels somewhere, does the longer barrel help stabilize heavier bullets out of that slower twist? What's yalls opinion on that? View Quote View All Quotes View All Quotes Quoted:
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I realized early on in my A2 build that I wouldn't be able to justify the expense of a government profile 1:7 twist barrel, so I just bit the bullet and bought an HBAR 1:9 barrel and called it a day. Techinically, not correct, but it does shoot well. Only draw back is it isn't threaded, and its a bit heavy. I've seen some threaded 1:9 barrels somewhere, does the longer barrel help stabilize heavier bullets out of that slower twist? What's yalls opinion on that? Read this, also the ammo oracle might mention this as well. The 1/9 vs 1/7 vs 1/8 twist is a highly debated topic, I am still trying to sort it out myself. If you google the twist rate for ARs' you'll see it's talked about on many forums. http://www.ar15.com/content/page.html?id=186 |
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View Quote How do I go about getting the sight block on? |
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How do I go about getting the sight block on? View Quote View All Quotes View All Quotes Quoted:
How do I go about getting the sight block on? Member John Thomas installed one for me. Did a great job at a fair price. You can contact him at: [email protected] He specializes in retro work, but he will do most anything. |
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A year or two ago I recall hearing about a lot of FN rifle barrels on our EE, I wished I had jumped on that back then. View Quote Built mine using one of those FN barrels. They were around $100 when I was buying them at local gun shows. I've not seen anymore in over a year. I would say they have dried up. |
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You might give Black Hole Weaponry a serious look, http://www.blackholeweaponry.com/
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I used a Del-Ton 20" government profile barrel on my recent A2 build. I've used their barrels several times and they have always been good quality and helpful customer service
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I would search the EE for a lightly used Colt or FN surplus barrel or buy a new BCM.
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I picked up a couple of FN barrels from OOW when they had them. Great barrels!
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How do I go about getting the sight block on? View Quote View All Quotes View All Quotes Quoted:
How do I go about getting the sight block on? If it were me doing an A2 build (coming by Spring probably), I'd try to find one included/installed. Failing that, I'd buy one like this and send/take it and a correct FSB to ADCO in Ohio (they are not that far from me) and have them drill and pin it. They are typically drilled together, and while I find it tempting to do it myself, I really don't have the correct set up to do it. And you only get one shot at getting it right. Dang, now you guys have me tempted to begin looking for more parts for my A2 build (so far only have the grip and shoulder stock!). |
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Barrel is all I'm missing :(
Waiting for BCM or PSA to magically appear in stock..... |
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I picked up a 20" govt assy from Sherluk at a gun show. Yeah, I know, but it was about the only stall with barrels there.
Otherwise the Delton's were in stock at the time or I would have gotten a J&T. I wasn't looking for anything fancy, at least the FSB is on straight! |
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BCM has 20" assemblies in stock, and has for a while now.
Unless you're referring to buying a stripped barrel... |
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BCM has 20" assemblies in stock, and has for a while now. Unless you're referring to buying a stripped barrel... View Quote Where? Doesn't have to be stripped, but I don't want to buy a whole built flattop upper right now either just for the barrel. http://www.bravocompanyusa.com/20-Rifle-Barrel-s/37.htm All I see in stock with a 20" govt profile barrel are built flattop uppers here: http://www.bravocompanyusa.com/AR-15-20-Rifle-Upper-Group-s/26.htm |
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BCM 20" are currently in stock. Ordered mine this afternoon!
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Do you guys think a BCM barrel would be worth the additional cost compared to a Green Mountain A2 barrel?
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I've bought several delton 20" government profile 1/9 non chrome twist barrels ..
they shoot great. in fact ..tbey shoot as good as my A2s with FNMI and chromed bushmaster 1/7 ...barrels. i personally don't see the need for chrome lined barrels.. a little more time to clean..but thats it. |
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Now that I got mine ordered, Brownell's has Sabre barrels on closeout.
1/9 chrome-lined with FSB for $199. |
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Now that I got mine ordered, Brownell's has Sabre barrels on closeout. 1/9 chrome-lined with FSB for $199. View Quote That a decent barrel? Decent price? |
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Now that I got mine ordered, Brownell's has Sabre barrels on closeout. 1/9 chrome-lined with FSB for $199. That a decent barrel? Decent price? That's an excellent barrel, iirc made by the same people that produce .50 cal M2 barrels for the US MIL. For $199 you get a 20" 1/9 twist chrome-lined barrel with installed front sight base, barrel nut and delta ring. Compared to buying a stripped barrel as a base, you are probably saving $100 easily. |
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That's an excellent barrel, iirc made by the same people that produce .50 cal M2 barrels for the US MIL. For $199 you get a 20" 1/9 twist chrome-lined barrel with installed front sight base, barrel nut and delta ring. Compared to buying a stripped barrel as a base, you are probably saving $100 easily. View Quote View All Quotes View All Quotes Quoted:
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Now that I got mine ordered, Brownell's has Sabre barrels on closeout. 1/9 chrome-lined with FSB for $199. That a decent barrel? Decent price? That's an excellent barrel, iirc made by the same people that produce .50 cal M2 barrels for the US MIL. For $199 you get a 20" 1/9 twist chrome-lined barrel with installed front sight base, barrel nut and delta ring. Compared to buying a stripped barrel as a base, you are probably saving $100 easily. Thanks for the reply. I just ordered one to complete a 20" A2 build. Thanks again |
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Now that I got mine ordered, Brownell's has Sabre barrels on closeout. 1/9 chrome-lined with FSB for $199. View Quote These SDI barrels shoots just as well as my Colts and FN's. In fact, they made a small batch of M16A4's for Uncle Sugar. |
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My Sabre barrel is marked 1/9, but on examination, it didn't look quite "right". Upon comparison with Bushie 1/9 and Colt 1/7, the Sabre appears to be a lot closer to the 1/7, FWIW. Maybe a 1/8???? Could be they got some of their barrels mixed up, and marked wrong. Good shooter, anyway.
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Got my Sabrebarrel from Midway. Haven't installed it yet, but it looks to be of really good quality.
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Hi Standard 20" 1-7 cl barrel at Brownells
A little more than I expected ($288,) I'll probably go with a Del Ton. |
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I've been keeping an eye on Del-Ton. They haven't shown the 20 inch barrels in stock for the past couple of months. Do you know of a source that has them in stock now?
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Is the Sabre barrel at Brownell's for $199 a 20" barrel? If so can anyone supply me the stock number? I am in need of a couple of 20" barrels with FSB's attached and cannot locate any in stock and at a decent price. I can't locate any 20" Sabre barrels on the Brownell's website...Thanks....<><....:)
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Quoted: Is the Sabre barrel at Brownell's for $199 a 20" barrel? If so can anyone supply me the stock number? I am in need of a couple of 20" barrels with FSB's attached and cannot locate any in stock and at a decent price. I can't locate any 20" Sabre barrels on the Brownell's website...Thanks....<><....:) View Quote |
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There's one more FN on the EE:
http://www.ar15.com/forums/t_7_22/1251006_20_FN_M16A2_Barrel_Chrome_Lined_1_7_Twist.html |
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I have one of these coming on Monday. http://www.del-ton.com/Del_Ton_Inc_Barrels_p/bl1027.htm View Quote View All Quotes View All Quotes Quoted:
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I've been keeping an eye on Del-Ton. They haven't shown the 20 inch barrels in stock for the past couple of months. Do you know of a source that has them in stock now? I have one of these coming on Monday. http://www.del-ton.com/Del_Ton_Inc_Barrels_p/bl1027.htm Funny. I tried to order one of those Monday night. Del-ton emailed me bright and early Tuesday to tell me they were out of stock. Thank you for your recent order with us. We are out of stock of our 20" Government Profile Barrels, I do not have an ETA. |
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Windham Weaponry has A2 profile barrels in stock as of yesterday. I ordered one Sunday night and got an email today saying it has been shipped. 1-7 twist, chrome lined, includes A2-style front sight. If you order by tomorrow it's 10% off and free shipping. I wish I could have afforded to get two.
http://www.windhamweaponry.com/shopexd.asp?id=309 Ken |
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The picture looks like the Windham barrel comes with a round hand guard cap?
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The picture looks like the Windham barrel comes with a round hand guard cap? View Quote Not sure. I'm going to use an A2 style free float tube so it won't matter to me. Even with the incorrect hand guard cap it seems like a good price on the barrel though, even if kind of a PITA to take the sight off to install a correct cap. I'll find out either way next week. Ken |
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I was able to get a a FNMI 20" barrel for my build. If not, would have bought BCM or Palmetto State Armory barrel(s)
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