Oregon Arms & Ammunition
Southwest Firearms Forum
J&B Firearm Sales
Oregon Rifleworks
Advertise on Northwest Firearms
Low Price Guns
Sporting Systems
Gun Deals
Buster Beaver Cerakote
Welcome to Northwest Firearms
Join our community, sign up for free today!
Sign Up


Firearm Model
The AR-15 is a lightweight, intermediate cartridge magazine-fed, air-cooled Armalite Rifle with a rotating lock bolt, actuated by a piston within the bolt carrier or by conventional long/short stroke piston operation. It has been produced in many different versions, including numerous semi-automatic and select fire variants. It is manufactured with extensive use of aluminum alloys and synthetic materials.

The AR-15 was first built in 1959 by ArmaLite as a small arms rifle for the United States armed forces. Because of financial problems, ArmaLite sold the design to Colt. After some modifications, the redesigned rifle was adopted as the M16 rifle. In 1963, Colt started selling the semi-automatic version of the rifle for civilians as the Colt AR-15. Although the name "AR-15" remains a Colt registered trademark, variants of the firearm are made, modified, and sold under various names by multiple manufacturers.

Read More
  1. eldbillbo

    Ar15 Flat top upper with 16" barrel $160

    The gas block is buggered up because it's really tight which is a good thing. $160 no BCG and CH. Trades wanted Colt Ar15 Parts. Plastic 80% lower with Jig kit, Left-handed Ar15 parts and accessories.
  2. badam870

    Ar15 trade

    Dpms ar15 package New scope 7 mags Case 600 rounds I like handguns mostly Pm me
  3. K

    Cleanout - BCM/PWS/VLTOR AR15's & more

    Downsizing the rifles/builds I have in my safe since these either never have been shot or never get any use anymore. I'm up in Everett, WA. Also can break upper/lower combos if that would make it easier for people. 1. Black BCM BFH 16" mid-length rifle. Magpul handguard, BCM grip, B5 Bravo...
  4. P

    Spikes billet gen 2 AR 15

    Spikes gen 2 billet upper and lower receiver Troy alpha barrel 14.5 pinned Spikes t2 heavy buffer and spring Seekins ambi controls Magpul sl-k stock POF flat face 3.5lb single stage trigger Odin works D2LITE 15.5 hand guard (sits flush with barrel) Fail zero nickel boron bcg Titanium pins...
  5. Krinkov

    SIG SAUER 516 14.5" Piston Upper complete w/ BCG, CH

    An elusive piece of cool 14.5" NOT pinned Adjustable piston gas system, even has a suppressed setting 20-40 rounds fired, still has factory oil in and out. ladder rail covers Lost the crush washer that came with it. I put on a used one that would time the factory A2 birdcage. $500 NE Portland...
  6. Javiero18

    Aero precision USA AR 15 for sale tons of mods

    Gun is worth 1300 best offer takes it . All details about gun in pictures
  7. C

    Ar15 striped uppers in the white with charging handle

    Ar15 stripped uppers in the white with charging handle Pics on the way
  8. C

    Ar15 , 80% lowers with parts kits, poly or forged in the white

    Ar15 , 80% lowers with parts kits, poly or forged in the white Parts kits are anderson Only a few left *Poly with pars kit: $80 Poly lowers are the good ones with brass inserts *Forged lower in the white with parts kit: $100 Pics on the way
  9. joeymdz

    Sig M400

    Used Sig M400 AR15 all ready to go for 3gun or for some fun. Over 1800.00 in aftermarket items (just add scope) NO TRADES $1200.00 and I will pay for the transfer. located in Salem, OR and will not pay for shipping NO TRADES SIG M400 AR15- carbine length SIG M-LOK hangsuard SIG gas block SIG...
  10. Lasers

    AR-15 Billet 80% Lower Receiver - $26.51 shipped (I think it's only today) [deal over]

    https://venom-defense.com/ar-15-billet-80-lower-receiver/ Use code MONDAY to get the extra discount/free shipping. They also have the black one for $40 and a slick side upper receiver for $28 AR-15 Slick-Side Billet Upper Receiver Never ordered from them before, but found some good reviews...
  11. cybersomatix

    Anderson AR-15

    Decent basic AR-15. Comes with Streamlight ProTac flashlight & Sling. Great for an introductory rifle. Approx round count: 500 $550 OBO Buyer pays xfer fee and BGC.
  12. Caveman Jim

    WTB: Troy flip up front sight

    Morning folks, been trying to find a used but good condition Troy flip up front sight, preferably HK version but will consider the M4 also. Convo for fastest response.;) I have reloading stuff for trade or cash. As always, thanks Jim Sr.
  13. Dillayn

    AR 15

    AR-15 Anderson lower, KG upper, raptor charging handle, Daniel defense pistol grip
  14. D

    Problem with AR 15 at the range

    Looking for help with a problem I had at the range. After firing my first magazine, I ejected and inserted a new magazine. Slapped the bolt release and nothing happened. On troubleshooting also found that the magazine was stuck and would not eject. I had to pull with a crazy amount of force to...
  15. Achevillot

    Benelli M4,7+1 extension, Surefire Light and Magpul Sling

    Hello, I'm selling my Benelli M4 with 7+1 tube extension, Magpul sling and Surefire P2x Fury tactical light. The shotgun has around 300 rounds through it and runs flawlessly. * Asking $1700obo not looking for any trades unless your getting rid of a LWRC SMG 45, factory Radian Arms Model 1 or...
  16. Achevillot

    Pelican 1720 Hard case

    Hello I'm selling my pelican 1720 case that used to hold my Ar10 as well as a 1911. The case is in great shape except for a few scratches on the outside. You will need new center foam($30) only since I cut them out for the previous rifle. The case retails for $240. I'm asking $115 obo or...