PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI
Jan 16, 2025 · Bolt Steel: 9310 Profile: Full Auto Profile Gas Key: Grade 8 Hardened Fasteners, Staked per MilSpec Features Upgrade your AR-15 with the PSA 5.56 Nitride MPI Full-Auto …
who makes the best bolts - AR15.COM
Jun 15, 2017 · At the lower cost end, I bought on sale the PSA Premium Full Auto Bolt 39339 - There $89.99 on their site: PSA 5.56 Premium Full Auto Bolt Carrier Group - No Logo - Shot …
spec request: bolt diameter - AR15.COM
Mar 29, 2007 · Bolt tail is just under 0.250" and the bore in the carrier should be right at 0.250" This is the secondary gas sealing area on the bolt/carrier fit so the clearance should be …
How long should a bolt last in normal use? - AR15.COM
May 15, 2012 · For my uses, I get about 10,000-15,000 rds through a quality bolt, that includes some mag dumps and plenty of carbine courses. However, I have seen bolts break early, and …
Toolcraft .223/5.56/300 BLK M16 Profile Bolt Carrier Group
Jan 14, 2025 · The Toolcraft 5.56×45 NATO/.223 Rem/.300 BO Bolt Carrier Group comes in the Salt Black Nitride finish to upgrade your existing AR build with an excellent, long lasting BCG. …
Blueprints - Bolt Carrier Group - AR15.COM
AR-15 AK-47 Handgun Precision Rifles Armory Training Competitive Shooting General Outdoors Archery Hometown Industry About AR15.COM AR15.COM is the world's largest firearm …
AR-15 Bolt Catch Plunger is stuck - AR15.COM
Jun 8, 2014 · I finally did some shooting with my AR-15 and the bolt stayed open every time after the last round was fired using the full length bolt catch spring (not my cut spring). I rotated 4 …
Dimensions to use in gauging wear on BCG components?
Feb 26, 2020 · Inside of bolt carrier where bolt rings are, min/max Inside of bolt carrier in front of area where rings are, min/max bolt tail diameter, min/max Thanks all. Edit 02/27/2020: I'm not …
Carbon buildup on bolt (to scrape or not) - AR15.COM
Nov 9, 2010 · Meh, I just drop my entire bolt in a tuperware bin of motor oil. Let sit for a couple of hours. Then detail strip the bolt carrier and wipe off the oil. This is with a 5.45x39 bolt carrier …
AR15 bolt stuck forward. Freed but what happened? - AR15.COM
Dec 12, 2021 · I just got an Ar15 upper and mated it up to a lower. The gun has a wylde chamber. I fired it for the first time. About 30 rounds in using 75 grain frontier ammunition, the bolt got …