Posted: 4/24/2014 3:29:34 PM EDT
| Anyone know the real differences between PSA 5.56 Premium HPT/MPI Full Auto Bolt Carrier Group that can be had with or without logo and the cheaper 5.56 HPT/MPI M-16 Bolt Carrier Group sku 46284? |
|
Quoted:
Anyone know the real differences between PSA 5.56 Premium HPT/MPI Full Auto Bolt Carrier Group that can be had with or without logo and the cheaper 5.56 HPT/MPI M-16 Bolt Carrier Group sku 46284? i suppose someone should make a bcg thread.. but the various versions have been daunting to me. |
|
I asked essentially the same question about a month ago at this link -> http://www.ar15.com/forums/t_2_301/247308_PSA___Differences_in_BCGs_.html
I think a PSA BCG sticky with pics would be a great idea. To date I own the following two BCGs from PSA. SKU #35099 - "5.56mm Full-Auto Profile Bolt Carrier Group" SKU #46284 - "5.56 HPT/MPI M-16 Bolt Carrier Group" When you look at the info on the 46284 you notice: - Made in USA - Made by a Mil-spec contractor - Milspec Carpenter No. 158® steel bolt - Shot Peened Bolt - High pressure tested (HPT) - Mag particle inspected (MPI) - Chrome Lined Carrier (AUTO) - Chrome Lined Gas Key - Gas Key Hardened to USGI Specifications - Gas Key Grade 8 Hardened Fasteners - Gas Key Staked Per Mil-Spec - Tool Steel Extractor - Extractor Spring Bolt is marked "MP", M for Mag particle inspected and P for Proof Tested (High pressure tested) Holding it in my hand, it looks like a high quality BCG to me; the staking looks great, the fit and finish looks great. A steal for the current sale price of $89.99. Beyond that I fail to see why I should spend more money on a PSA "Premium" or a Spikes Tactical or a BCM for that matter. Throw in a 5 cent o-ring and away you go... |
|
Quoted:
hmm.. so comp, maybe make a definitive bcg thread? :) Okay! I just posted up a definitive bcg thread -> http://www.ar15.com/forums/t_2_301/248955_.html&page=1 How did you get your definitive PSA Lower thread in the sticky? |
|
Quoted:
Okay! I just posted up a definitive bcg thread -> http://www.ar15.com/forums/t_2_301/248955_.html&page=1 How did you get your definitive PSA Lower thread in the sticky? Quoted:
Quoted:
hmm.. so comp, maybe make a definitive bcg thread? :) Okay! I just posted up a definitive bcg thread -> http://www.ar15.com/forums/t_2_301/248955_.html&page=1 How did you get your definitive PSA Lower thread in the sticky? i had to get the thread listed with pictures and all information then beg for weeks to get it stickeyed lol |
| Does the 5.56 HPT/MPI M-16 Bolt Carrier Group sku 46284 have an extractor spring insert? I assumed it had no o-ring but I have several of those. I should have found out about the insert before I ordered though because I don't want to have to make a separate order and pay shipping for some little extractor spring inserts! |