AR-57

[Rough Gear Review]

So I bought a few lowers in December just because of the upcoming registration but I realized I really didn't want anymore AR's. I already have 4 and had just got rid of one. So I started looking into other rifles to build out of them.

The first was the AR-57.

The upper is a second gen from AR57. Magpul stock, grip, trigger guard, afg and flip up sights. 10 round magazine from AR57. Trijicon RMR with high mount so the flip up sights co-witness. Bullet button for AR57 from raddlock and I even put a bullet button on the lower just to be safe.

I'm stoked with it, no recoil, accurate and fun. Now I just need more ammo.

[Gutz]

Nice!!! Is there a bullet button for these as well? How does that work?

[Rough Gear Review]

The top rail comes off and exposes the magazine release which is an ambidextrous handle, magazine catch and a spring. Replace the magazine catch with the one from raddlock and remove the handle then put everything back together. Pretty simple.

[hcbr]

Nice OP , looks great! i've been thinking of getting an upper to go with another build/lower i have on hand, besides my PS90 can be lonely at times and must be accompanies by another rifle/gun in the same caliber lol

[audiophil2]

They are pretty nice uppers. Here is my 12".
I have sold a few of the 16" and 12" uppers to Calgunners.

[mt417]

Very interesting... what purpose does the 5.7 serve?

EDIT: Oh, to replace 9mm?

[starsnuffer]

5.7 was originally designed as a PDW round capable of penetrating body armor. The NATO specification was that the round could be used interchangeably in sub guns and pistols. The 5.7 was developed for FN's P90 and 5.7 pistol. The only competitor was the 4.6mm developed by HK used in the MP7 and defunct UCP pistol. The weapon system was never adopted by NATO as a package, but the cartridges and weapons linger on.

5.7 NATO ammo is not legal in the US due to it's armor piercing capabilities, the civilian load is different.

-W

[MrPlink]

5.7 is purely a fun round (albeit expensive) for civis. Its efficacy sans the penetration of an AP bullet is severely diminished.

[GunWhore75]

Might not look like it, but it is a perfectly legal AR57 pistol. And it is a blast!

[opie4386]

Try the AR-180/AR-18

[Rough Gear Review]

Might not look like it, but it is a perfectly legal AR57 pistol. And it is a blast!

Thats very cool. I love the Sig Arm Brace, gives us Californians a SBR

[Rough Gear Review]

Very interesting... what purpose does the 5.7 serve?

EDIT: Oh, to replace 9mm?

I'm not at war so all my calibers serve the purpose of fun. :-)

[GunWhore75]

Thats very cool. I love the Sig Arm Brace, gives us Californians a SBR

Then you will get a kick out of this one... LOL!

[Glockrocks]

Saiga 12 with an AR57?

[bruss01]

Didn't realize you could get 10 round mags for these. Now I want one.