SAA - AR15/M16 Partial Nickel Boron V1.2 Bolt Carrier Group (BCG) .223 / 5.56 / 300AAC
A completely assembled, ready to install AR15/M16 Bolt and Carrier System. Radically improves the performance of your M16 / AR-15 and minimizes the need to apply oil or grease to treated parts for the life of the weapon. Nickel Boron finished parts: Carrier & Key. Nitride Bolt.
- Caliber: .223/5.56/300AAC
- Nickel Boron Carrier w/ Forward Assist Serrations
- Matte Nickel Boron Finish
- M16 Full Auto Style Carrier
- Carrier Material: 8620
- Nickel Boron Gas Key
- Mil-Spec Staked Gas Key
- Bolt Material: 9310, Nitride Finish
- MPI (Magnetic Particle Inspected) Bolt
- Mil-Spec Gas Rings
- Standard firing pin, cam pin, and retainer
- Fully assembled
- All Parts Made in the USA
*Will also work for 300 AAC/Blackout Builds!
NOTE: Limited to 3 per order. You can place multiple orders for as many as you like based on how many we have in stock on the site.
38 Reviews Hide Reviews Show Reviews
Bought this for an AR I was building, chambered in .223. fit was very good with no issues. Lubed it up good before using and shot 50 rounds through it without any jams or malfunctions. Worth the money in my opinion.
Installed in a pistol build
Looks good against burnt bronze. Great function.
Reviews requests are a little to quick.
This is the second one of these I have bought for a rifle build. I have used this BCG in two day fighting rifle classes with both brass & steel cases. The BCG did not disappoint. With more then a few thousand rounds cycled, I have not had any issues. And yes, I do lube the bolt.
This bolt works great in my 556 build and looks great!!!
All the places I usually get AR parts from were completely out of BCG’s and then I found Surplus Ammo. I have never heard anything about them, yet they had BCG’s in stock for decent prices. I tried out ordering the nickel boron BCG with a 223 bolt and waited to be disappointed. I received it in about a week and tried it out, and I was surprised that this was a quality part. The gas key was properly staked, fit was excellent, functioned flawlessly, and the finish makes cleaning a breeze. I will be recommending surplus Ammo to anyone I can.
Worked well so far but only a few rounds with it