SAA AR-15 Bolt Assembly Nitride 9310 MPI - 458 SOCOM/450 Bushmaster
Replacement bolt for the 458 SOCOM / 450 Bushmaster Caliber AR-15 (or new builds). Assembled, Nitride finished AR15 Bolt. Completely assembled with standard bolt parts: extractor assembly, ejector assembly, gas rings. Works with any AR15 standard Carrier of any finish (Phosphate, Nitride, Nickel Boron, Chrome etc.) as well as standard carrier parts: Firing Pin, Cam Pin.
*NOTE: This is NOT a complete Bolt Carrier Group. This is just a complete AR15 458SOCOM / 450Bushmaster Bolt.
- NEW AR15 Bolt Assembly
- Caliber: 458 SOCOM / 450 Bushmaster
- Bolt Material: 9310 Steel
- MPI (Magnetic Particle Inspected)
- Bolt Finish: Nitride
- Part is a Completely Assembled Bolt (see pic)
- Manufacturer's Part#: SAABP016
- All Parts Made in the USA
10 Reviews Hide Reviews Show Reviews
Installed on a carrier (from Brownells i think), it worked just fine, no issues, no failures, no damage to cartridge head. Time will tell how long it will last (450 BM is a hard shooting cartridge).
The stock bolt that came on my 450 upper wouldnt extract spent shells. I purchased a 450 bolt and it fit perfect and cycled the way a AR is supposed to.
This bolt is a nice piece with a fair price.
fit and finish look good . have not had a chance to fire on assembled bcg . customer service has been above and beyond helpful .
Everything fits perfect and to specs.
Purchased this for my .458 socom pistol build. Have 60 rounds of hard hitting 300 grain TSX ammo form Black Butterfly. Installed the BCM extractor upgrade kit (as I do on all AR bolts) zero malfunctions so far so good!
I bought this because I was having problems with my radical firearms 458 socom. This bolt corrected the problems I was having which was multiple feeding and chambering issues. Great job with this design. I highly recommend buying this bolt for 458 socom use.
Bought this bolt to complete and Adams Arms Piston on a 458 Socom build. Great price, in stock and super fast shipping. Extractor looks good, not a recut 556 extractor., so it shouldn't have any breakage issues. Fits an headspaces into my SOTA Arms barrel correctly. See The whole build thread below.
The best price anywhere on these bolts, high quality and work great. I will buy more when needed. Customer service at surplusamm.com is also top notch.
Hard to find bolt for a fair price.