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ar upper
The AR-57, also known as the AR Five Seven , is a Lower receiver for the AR-15/M16 rifle and an Upper receiver, firing 5.7×28mm rounds from standard FN P90 magazines. It was designed by AR57 LLC and is currently produced by AR57 of Kent, Washington, USA. The AR-57 PDW Upper is a new design on AR-15/M16 rifles, blending the AR-15/M16 lower with a lightweight, monolithic upper receiver system chambered in FN 5.7×28mm. This model is also sold as a complete rifle, supplied with two 50-round P90 magazines. The magazines mount horizontally on top of the front handguard, with brass ejecting through the magazine well. Hollow AR-15 magazines can be used to catch spent casings.
Unlike the standard AR-15 configuration which uses a gas-tube system, the AR-57 cycles via straight blowback. A full auto version exists marketed as a competitor to the P90 and other personal defense weapons.
Looking for a decent AR upper don't need a charging handle. Looking for a colt,maybeeee PSA I prefer a 14.5 pin and welded or 11.5, I open to other uppers please no Bear Creek ect... I have cash and have trade for an eotech xps-2 and vortex magnifier
I have a barley used 20 inch AR DMR upper that was built by Precision Firearms. Round count is ~200 with 100 being suppressed.
Absolute laser like accuracy.
Build is as follows:
Precision Firearms Billet Upper
Adams Arms Rifle Length Adjustable Piston System
Lothar Walther 20 inch Stainless...
complete upper for AR 15 - no BCG or charging handle
Black hole weaponry 18" mid profile stainless 1/8 twist rifle gas barrel
Midwest industries 15" ff slimline hand guard with modular rail parts
DPMS lo pro upper receiver
Around 500 rounds through it... barrel looks brand new.
Make offer...
I am offering to a good home this Olympic Arms upper with bolt, two magazine pouches, two magazine loaders, two style magazine well blocks, and 10 Sten magazines in various condition (some don't work, some unmodified, some work good).
As is. Was working last I used it on standard AR Lower...
Forged upper with FA and DC, no feed ramp cuts, $80
Hogue? 12.375" free float tube with barrel nut and sling mount, $80?
Railed gas block with rifle length gas tube, $20
Midwest Industries fixed rear sight, Yankee Hill Machine gas block height front sight, $75 pair, $40 each.
I really hate...
I have the sight parts from a broken carry handle, I would like to use them but I can’t find replacement studs or nuts anymore. If you can custom turn them for me on a lathe I can give you the old worn ones for comparison.
For sale is my 16” upper from Palmetto State Armory. The barrel is 1/7 twist and I always found it to shoot accurately. Upper has less than 500 rounds through it.
Included is PSA’s Nickel Boron BCG and charging handle, along with with two handguard sets, the Keymod set as seen on the rifle and...
This, like all of my AR receivers, was assembled by an FFL gunsmith. Diamondhead VRS handguard, Faxon Gunner profile 1/8 twist 5.56 barrel with rifle length gas system. Bolt carrier group is Anderson. Upper receiver is, best I can remember, also an Anderson. I’ve fired approximately 800...
For sale or trade is a PSA GEN4 9mm 8” MLOK upper with BCG, Mod 3 BCM GFH, and three converted PMAGS with ENDO mag guts. All you do is swap this upper and use these mags without a mag well conversion. This model it unfired from the factory. One ENDO mag was adjusted (filed per instructions) to...
On AR uppers there are forging marks that tell you who made your upper. I got one from PSA that I've never seen. I can find no info on it. It looks like a letter M with a screw (?) going into the middle of the M. I would ask PSA, but that would mean waiting until Hades freezes over. Thanks
18: 1/8 SS 223 Wylde barrel. Free float. Nikon 3-8 BDC. Unfired upper. Wanting to trade for a 10 to 12" upper in 7.62x39 or 9mm.
Also trade for edc 9mm.
Trade only.
Windham Weaponry SRC 7.62x39 16 inch Upper, Complete, New, Unfired. (Note: rail height is the same fore and aft, not offset.)
6 D&H 30 Round AR15 7.62x39 Mags, New.
420 to 480 Rounds 7.62×39 steel cased ammo, (I think there's a box of hollowpoint in there too).
Trade is for upper...
For your consideration I have 9mm complete upper. It was built with a 4” KaK melonite barrel with KAK flash can topping it. I used an anderson slick sided pistol upper and a 4” free float keymod hand guard. It has a Stoner 9mm bcg and billet charging handle. It will come with a 30 rd pmag with...
Problem:
I recently picked up a Canadian made Colt 10.5" upper. It's pretty cool, it's stamped with the Diemaco logo on the upper and FA BCG. I haven't found a diemaco logo on the barrel yet but to be honest I haven't really looked. It's stamped C MP CB though so it's a colt.
The handguard on...
Complete upper (no iron sights): $715
Trying to sell as whole, but will consider parting out for:
Upper receiver + Barrel assembly = $580
BCG = $120
Charging Handle = $30
Comes with everything needed to shoot 9mm from a standard lower.
Includes basic charging handle and cheapo backup irons.
This setup does have last round bolt hold open.
Magwell adapter pushes into magwell from bottom, then held in by top adjustment screw and 2 set screws near bottom front.
Setup...
I have a really nice AR upper for sale:
Aero upper receiver $60 new
Shilen 16" Match grade SPR barrel 1:8 twist $430 new
BCM MCMR-15 15" M-Lok handguards $200 new
249 Saker Break/Hider $120 new
BCM sling mount $
Magpul forward grip
M-Lok pic rail section
Leupold Mark AR 3-9x40 $349 new
LaRue...
Parting it out - look for new ad with the parts and pieces.
Got this in a trade and I simply don’t see myself getting into using it. I’d consider parting it out if someone wanted all the 7.62x39 specific bits, but otherwise would prefer to just unload the whole thing.
KAK 16” barrel and bolt...