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View Full Version : Lightweight 20 in A3 w/pinned front sight block?


Ron3
06-21-18, 12:01
No one makes this? Basically an A1 upper with a flat top.

I'd like one. I'd probably get it even if it was 1:12. Forward assist not a requirement but desirable. Don't really want the brass deflector but don't care that much..
bb223
06-21-18, 12:37
No one makes this? Basically an A1 upper with a flat top.

I'd like one. I'd probably get it even if it was 1:12. Forward assist not a requirement but desirable. Don't really want the brass deflector but don't care that much..

Faxon sells just a barrel, it's not exactly what you're looking for but if you're not against getting it sent out to have an FSB installed this might work?

http://faxonfirearms.com/20-gunner-5-56-nato-rifle-length-4150-qpq/

If none of this would work, I apologize :ph34r:
grizzman
06-21-18, 12:39
I made up my own with one of Brownell's 20" A1 profile 1:7 barrel assemblies and a flat top upper I had in a drawer.
Ron3
06-21-18, 12:58
The pinning of the front sight/gas block is the tough part of the idea. Almost nobody does it.
Ron3
06-22-18, 19:27
I made up my own with one of Brownell's 20" A1 profile 1:7 barrel assemblies and a flat top upper I had in a drawer.

Cool. Did you go with a fixed sight block?
grizzman
06-22-18, 19:30
Yes. It came as a completely assembled barrel. It's still listed on their site, so it's possible they may be stocked again in the future.
Ron3
06-23-18, 06:10
Yes. It came as a completely assembled barrel. It's still listed on their site, so it's possible they may be stocked again in the future.

Really? A 20 in LW barrel with pinned sight block? That's great I'll look for it.
556Cliff
06-23-18, 09:20
Really? A 20 in LW barrel with pinned sight block? That's great I'll look for it.

Here it is. > https://www.brownells.com/rifle-parts/barrel-parts/rifle-barrels/ar-15-20-a1-rifle-barrel-1-7-assembly-prod97909.aspx

They also have the same barrel with a 1/12 twist that is out of stock as well. Last I heard both of them were supposed to be coming back in stock sometime in July.

They are made by Ballistic Advantage.
MegademiC
06-23-18, 09:55
OP if you google “20” a1 barrel” multiple options are available.
Brownells
Del-ton
Faxon
Green mountain
Tnte
Etc.
BrigandTwoFour
06-23-18, 10:55
If Brownells makes a complete one, that's probably the route I'd go.

The Faxon option is also good, but it's going to be an assembly task. I did this one last year using their 18" Gunner barrel. I love this thing.

https://everydaymarksman.files.wordpress.com/2017/07/img_1669.jpg
Ron3
06-23-18, 11:43
OP if you google “20” a1 barrel” multiple options are available.
Brownells
Del-ton
Faxon
Green mountain
Tnte
Etc.

If I bought a barrel to have the FSB pinned on I was leaning towards the Green Mountain.

I had got a new 20 in Del-ton upper a year or two ago. Crossed my fingers/rolled the dice on the "budget" upper but it didn't help. It didnt run well at all. Way under gassed. Sold it with disclosure for $150.

I'll keep an eye on that Brownell's upper.
556Cliff
06-23-18, 18:29
Brownells is saying mid/late August for the 20" 1/7 A1 barrels now.

However, they do have the same barrel without FSB. > https://www.brownells.com/rifle-parts/barrel-parts/rifle-barrels/ar-15-20-a1-rifle-barrel-1-7-stripped-prod97908.aspx