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556 upper
The ADCOR A-556 is an assault rifle based on the M16/M4 series. It is produced by the Adcor Defense Company and was one of the contenders in the US Army Individual Carbine Competition to replace the M4 Carbine.
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View More On Wikipedia.org
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PSA 556 upper complete
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- For Sale
- For Trade
- $250
- Woodburn
- Oregon
PSA upper complete, only 300 rounds fired. Works great, looking for a 300 blackout for my lower. $250.00 no low ballers please. Or trade and cash on my end for a 300 black out upper. 503-984-5834- Classified Ad
- Part & Accessory Classifieds
- frenchie1061
- Replies: 2
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16 inch 556 upper complete
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- For Sale
- $425
- Scappoose
- Oregon
Looking to sell my 16 inch ar15 upper 16 inch stag arms barrel, gas block, and gas tube. Stngr vypr 14 inch handguard Aero upper and parts kit Microbest bcg Sprinco extractor and springs. Sprinco cryo treated gas rings. Milspec charging handle Only 20 rounds on upper Want to get 425... -
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Fresh 556 upper 16”
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- For Sale
- For Trade
- $251
- Portland
- Oregon
16” S&W barrel only has 90 rounds down the barrel. Psa upper receiver. New never shot New Gas tube. No bcg. 1:9 Twist Cash or 10.5” handguard for Ar15- Classified Ad
- Part & Accessory Classifieds
- Gambeeno
- Replies: 0
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Best deal on upper in 556.
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- For Sale
- For Trade
- $280
- Hillsboro
- Oregon
I have one upper for sale. It's pretty sweet but I want to fund a different project! It's a spikes tactical upper receiver, All black, chambered in 556, has quad-rail handguard, 11.5" barrel. I added the strike industries King comp to go with the "Oppressor" blast shield. $280 OBO Trades...- Classified Ad
- Part & Accessory Classifieds
- WIN308
- Replies: 0
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Best deal on AR Uppers 556,300BLK
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- For Sale
- For Trade
- $220
- Hillsboro
- Oregon
MOVED TO CLASSIFIED, AR PARTS.. I have two uppers for sale. They're pretty sweet but I want to fund a different project! Also, check my other post for the springfield VHS-2 (Hellion) bullpup rifle. First upper: It's a spikes tactical upper receiver, All black, chambered in 556, has quad-rail...- Classified Ad
- Rifle Classifieds
- WIN308
- Replies: 1
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LWRC IC-DI 556 16" Upper with Strike Eagle 1-6
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- For Sale
- $1000
- HIllsboro
- Oregon
LWRC IC-DI 5.56 16" Upper with Vortex Strike Eagle 1-6x24 Red Gen1 Scope AR BDC Shot about 600-800rds mostly suppressed and runs fine. Vortex has no scratches and will come with a battery installed. Will be mostly cleaned and dry when you receive it. Scope will need to be retightened and zeroed...- Classified Ad
- Part & Accessory Classifieds
- hisokas
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- Tags
- 556 upper ic-di lwrc strike eagle upper
- Replies: 0
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WTS: Sig 556 Upper- Swiss/US Parts
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- For Sale
- $500
- Lynnwood
- Washington
Okay- listing this on the forum… Ive had tons of deadbeat buyers/lowballers on this one- so- with that being said, please dont low ball me. This is a very nice Sig 556 (550 series) upper receiver w traditional swiss style long gas system (not SWAT length)- I AM willing to part out everything...- Classified Ad
- Rifle Classifieds
- Jcremer24
- Replies: 1
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BCA side charging 556 upper
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- For Sale
- $250
- Vancouver
- Washington
16 inch One magazine fired through it works great $250 can add od green magpul mbus for $25 more no shipping cash only meet at Vancouver sportsman’s- Classified Ad
- Part & Accessory Classifieds
- Sasquatch702
- Replies: 3
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Nib foxtrot mike 556 upper
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- For Sale
- $280
- Vancouver
- Washington
New never been used no bcg or charging handle I ordered it and decided to go with something else paid $300+ with taxes and shipping asking $280 no shipping or cash apps we can meet at sportsman’s in Vancouver or IKEA near PDX- Classified Ad
- Part & Accessory Classifieds
- Sasquatch702
- Replies: 0
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WTT/WTS Aero 556 upper for 300bo upper
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- For Sale
- For Trade
- $350
- Portland
- Oregon
Looking to trade my Aero 556 upper for 8”ish 300 blackout upper. We can trade complete uppers or keep our ch and bcg. Warden and warcomp not included. Cash price w/o warcomp and warden $350 Cash price with warcomp and warden $650- Classified Ad
- Part & Accessory Classifieds
- 3wayA
- Replies: 5
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Aero M4 556 complete upper
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- For Sale
- Vancouver
- Washington
Aero M4 upper with 8" Enhanced Hand Guard 10" CMC Button Rifled Barrel Aero bcg Rise Armament charging handle $525 Willing to ship- Classified Ad
- Part & Accessory Classifieds
- Major Payne
- Replies: 0
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Wolf A1 or BRN-180, worth it? What 556 upper to get?
I have very few things designed after 1945, but I have my obligatory AR and AK. The AR is a budget DI Ruger-556. Before it becomes more difficult, I was looking to get a something different, just for fun. I really don't shoot 7.62x51, so sticking in 556. I also have a 7.62x39 AR already, so... -
Daniel Defense MK18 RISII railed 10.5 inch 556 upper
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- For Sale
- $425
- Bothell
- Washington
MK18 Upper. Black. Includes. DD MK18 RIS II 9.55 inch Handguard. Splintered A marked flat top upper receiver with mil-spec parts. 10.5 inch barrel. Unknown make. It marked 5.56 Nato 1x7 Chromed. With a pinned gas block and gas tube. A2 flash hider. 3 rail covers I was told it was a government...- Classified Ad
- Part & Accessory Classifieds
- Jimmy James
- Replies: 4
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Sig MCX Rattler 556 upper
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- For Sale
- $1400
- Kirkland
- Washington
Open box. Never mounted and never shot. Mcx rattler complete upper in 556 Price is 1400 shipped. You will not find one cheaper PayPal FF or venmo only Cross posted on ar15 -
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I want a 11.5 inch 556 upper
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- Want to Buy
- Beaverton
- Oregon
Howdy folks, I'm looking for a 11.5 inch upper for a pistol build. I'm willing to drive if you are. Preferably from Oregon (I don't have a Washington or Utah CHL) so I don't want to take off my CCW but if I get the right deal I can work something out. The hand guard must be M-LOK or a picatinny... -
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Sig Sauer MCX Virtus 11.5” 556 Upper
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- For Sale
- For Trade
- $2000
- Lake Oswego
- Oregon
Upper just got back from sig with a clean bill of health. Can ship, looking to get $2000 for it. This is one of my favorite uppers and I’ll be sad to see it go but I have other things that need my money. I have a lower for it as well- Classified Ad
- Part & Accessory Classifieds
- FlatDullEarth
- Replies: 0
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PSA 556 Upper no scope
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- For Sale
- For Trade
- $350
- Stayton
- Oregon
PSA 16" MID LENGTH 1/7 NITRIDE 15" LIGHTWEIGHT M-LOK UPPER WITH BCG & CH - 5165449680-NO SCOPE. Has Maybe about 20 rounds through it. Open to trades ammo 9mm, 308 mainly but may consider other. Make an offer.- Classified Ad
- Part & Accessory Classifieds
- papajohn8990
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- Tags
- 556 upper upper with scope
- Replies: 7
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Brand new 10.5 inch 556 upper
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- For Sale
- $300
- Klamath falls
- Oregon
Brand new unfired upper. 10.5 inch barrel with 9 inch mlok rail. I ordered this upper an im deciding to go with a 300 blk instead.- Classified Ad
- Part & Accessory Classifieds
- sterling92
- Replies: 1
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Sold Custom 10.5" 556 upper
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- For Sale
- For Trade
- $545
- Clackamas
- Oregon
Custom 10.5" 556 upper in great condition made with quality parts. less then 200 flawless rounds down range. -Aero M4E1 Threaded Upper Receiver -Sons of Liberty Gun Works 5.56 M16 / AR-15 Bolt Carrier Group - Phosphate -Ballistic Advantage Modern Series 5.56 AR-15 Barrel Gov. Carbine - 10.5"... -
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Aero fde enahnced 556 upper
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- For Sale
- $140
- Corvallis
- Oregon
Has cosmetic damage to finish. Comes with aero barrel nut and 2 wrenches Meet in corvallis area or pay $7 shipping.- Classified Ad
- Part & Accessory Classifieds
- dal671
- Replies: 0
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