What happened to the AR57? - AR15.COM
网页2017年4月30日 · Defeats the purpose. The ps90 is a short, handy design. The ar57 is a long, top-heavy, slow handling design with much less f/lb than 223. The 5.7 is a great round for the ps90. No real point in an AR15 other then …
AR57 Upper 5.7X28mm problems shooting - AR15.COM
网页2010年4月25日 · NG/PVS-14-GP – U.S. Gen3 Filmed Green Phosphor! $2599! Best Limited Lifetime Warranty out there!! [ARCHIVED THREAD] - AR57 Upper 5.7X28mm problems shooting. ARCHIVED. Posted: 4/25/2010 1:37:44 PM EDT. so I recently picked up an AR57 Upper and put it on my Rock River Lower. It's a tight fit but is getting worked in.
PSA/Panzer AR57 ULT Uppers - AR15.COM
网页2022年7月11日 · Fit/finish comparable to the original AR57 production. Bolt profile is different, so swapping bolts between original and panzer uppers is a no go (here’s looking at you Ar57 FA bolt). Barrel diameter seems similar to the original m16 pencil barrels. I didn’t take the FH off to examine the threads/profile.
PANZER AR57 ULT UPPER ASSEMBLY 5.7X28MM 12" - AR57ULT-12
网页2023年7月29日 · Comes with a 12" lightweight barrel with M-LOK rails. This AR57 Upper Receiver Assembly converts any AR-15 lower to a rifle capable of shooting 5.7x28 ammunition. The unique upper design loads from the top and ejects downward through the AR-15 mag well. The new generation upper has a stronger, lighter, and more …
Rhineland Arms AR57 - AR15.COM
网页2006年3月18日 · SS190 FMJ is like a baby version of the SS109. +1 for the 5.7x28 being a replacement for pistol caliber. Keep in mind that the original intent of the P90 and 5-7 was a possible replacement of a PDW for rear, non-frontline troops. The PDW that it was facing off with was the HK MP5 family of weapons (ie MP5 PDW).
Brief review of my new AR57 upper - AR15.COM
网页2011年6月3日 · For those of you that have no idea what I am talking about, the AR57 upper is a monolithic railed upper that fires the 5.7mm round and uses P90 magazines (50-round). It's a pretty clever design, with a wonderfully simple blowback mechanism with very few moving parts - and uses the existing magazine well as a downward ejection port (making …
AR57, what's the point - AR15.COM
网页2009年1月28日 · The AR57 has it's disadantages. the mags are tricky to change under stress. You can not mount a large scope if you want to be able to reload. The rifle is pretty much limited to iron sights and small red dot sights. The bolt hold open does not activate on the last round but can be set manually.
Ar57 full auto bolt for sale - AR15.COM
网页2022年2月26日 · The project got delayed a month, so I'm supposed to contact them mid March for an update. They were at SHOT 2022. [ARCHIVED THREAD] - Ar57 full auto bolt for sale. ARCHIVED. AR-15 » Rifles, Uppers, Lowers, Barrels, and more.
AR57 Upper Project - AR15.COM
网页2011年9月22日 · As for the ATI AR57 upper – I can’t find a lot of info other that some early testing done by a few folks and that it appeared at an NRA show back in 2007. I too was concerned about ‘yet another caliber’ to support – but all in all the 5.7x28 is a nice round for plinking (although pricey) and a good Varmint round.
AR57 barrel change, how hard? - AR15.COM
网页Posted: 12/10/2010 8:35:53 AM EDT. I have 2 AR57 uppers, and would like to swap the barrels before I sell one of them. has anyone done this? and if so how easy is it and can you give any directions/pointers? I am pretty handy, built plenty of AR15's and other rifles, but this is clearly a little different and wanted to get some input before I ...