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upper receiver
In firearms terminology, the firearm receiver or firearm frame is the part of a firearm which integrates other components by providing housing for internal action components such as the hammer, bolt or breechblock, firing pin, extractor and trigger mechanism, and has threaded interfaces for attaching ("receiving") external components such as the barrel, stock, grip and mounts of telescopic sights. The receiver is often made of forged, machined, or stamped steel or aluminium; in addition to these traditional materials, modern science and engineering have introduced polymers and sintered metal powders to receiver construction.
Near perfect - MK18 CQBR MOD1 Upper Receiver Group (URG) - No expense spared
Only 200 rounds through the barrel - Several new components recently installed - I am the second owner of this piece
Parts list -
- Colt M4 Upper Receiver Keyhole Cerro Forged (Like New Old Stock - some salt from...
I've got a well-used Colt A1 upper receiver. Marked C H on the stampings. It has seen better days but would make a very cool conversation piece for an old period correct build. Upper receiver comes as-is and what you see is what you get. Everything appears to be in good working order. I...
I need a 9mm upper preferably pistol length
I need a 300 blackout upper pistol length as well
I need a DPMS LR308 upper 22 in or longer please
Send me pricing please and pictures I don't care if it is beat or beautiful
16" Side charging Foxtrot Mike 9mm upper in very good condition.
I would estimate less than 1000 rounds through it. Purchased March 2021
Great upper and very reliable. I really like the side charging.
Charging handle can be swapped from left to right.
I have a 7" version of this upper I will...
I'm looking to sell my Ruger Mark 4 upper receiver.
It is the bull barrel version in brushed stainless finish with a 1/2x28 threaded barrel and adjustable iron sights. This price does not include the vortex red dot, bolt, or the picatinny rail.
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Please note that there is some VERY small...
I am currently trying to trade my Daniel Defense M1A1 Upper receiver less than 200 rounds ran through it. Only down side is the upper is pined and welded to Surefire Warcomp. I was going to run a rc2 on it but changed my mind . I’m currently looking to trade for a DD MK18 Upper. I could possibly...
S&W upper receiver I got on the M&P15 Sport back in 2011. Has obvious signs of use but it's still in working order. I'd say less than 3000 rounds since 2011. I only replaced it because I wanted a forward assist and dust cover upper.
Was spray painted about 10 years ago with Rustoleum.
$30...
A new to me stamp and just curious if anyone has seen this marking and knows who the stamp belongs to.
An AR upper and located on the bottom of the rear take down lug.... "h."
~TIA
Used Mueller upper receiver. Marked M4 with a dog bone over gas tube hole and t markings. Complete with forward assist and port cover. Some wear from contact with charging handle. $75 shipped, PayPal/Zelle preferred.
Gotta do a clean out and I just keep not getting around to this.
Anderson xl bigbore upper. Not finished.
Tromix 16" new barrel. New.
Mainly looking for a quick sale or I'll just put this back in hiding.
$400
I'll consider trades.
Send pm. F2f preferred. Shipping is a last option.
This came as part of a complete upper receiver from PSA. Basically new, never fired, but I disassembled it from the complete upper. Split 'A' marked.
$40 shipped.
For sale is a complete custom upper receiver assembled by the armorers at B King Firearms. The upper features a 7075 Forged Upper with a 11.5 lightweight handguard. The barrel is a Faxon 14.5" 5.56 Pencil barrel with a 1/8 twist, pinned and welded to 16 inches with a Breek Arms flash hider...
For sale is a new unfired BCM SS410 16" Mid length upper, with a PRI 12" black handguard. Barrel is a 1/8 twist. My loss is your gain on the reseller market.
Never shot, never built, but I did look at it in my safe a whole bunch.
DM for my phone # or comment here to start a convo with any...
New, unfired Aero M4E1 upper receiver group for sale.
M4E1 enhanced upper.
Low profile gas block
EQ9 rail with free floated barrel
12.5" barrel with A2 flash hider
This was $530 originally, selling for $320 face to face in the Portland area.
You're welcome. Comes with forward assist and port door/cover just uninstalled. It's BCM, just keep them around for your next build or perfect for a precerakote build.
https://bravocompanyusa.com/bcm-upper-receiver-m4-flat-top-m4-feedramps-complete-unassembled-demo-scratched/