Palmetto State Armory 5.56 Premium Full Auto Bolt Carrier Group - 8779

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Palmetto State Armory 5.56 Premium Full Auto Bolt Carrier Group - 8779


Quick Overview

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SKU: 8779
UPC: 8779
MFR#: 8779


  • Milspec Carpenter No. 158® steel bolt
  • Shot Peened Bolt
  • High pressure tested
  • Mag particle inspected
  • 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
  • Extractor O-ring Insert
  • SKU 8779

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Made in USA.  Bolt is made of Mil-spec Carpenter 158 steel, Shot peened, High pressure tested and Mag Particle Inspected.   Gas key is machined out of bar stock, chrome lined phosphate coated, and secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is phosphated outside and chrome lined inside.  Laser engraved with the PSA logo.

For packaging considerations, BCG will be packed dry.  As a result, it will have a grey, dusty appearance that will turn  black with the application of CLP or other preferred lubricant.

  • Extractor Spring
  • Black Extractor Insert
  • Mil-Spec O-Ring
SKU: 8779
SKU 8779
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
SKU: 8779

Questions and Answers

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Browse 7 questions Browse 7 questions and 55 answers
Will this bolt turn my ar into a full auto gun? Or what else would I need to make that happen. New to this and was just curious thanks!
Mckay B on Apr 13, 2018
BEST ANSWER: No this will not turn the AR into a full auto. You have to add an auto sear to the lower reciever. However if youi do this you will risk jail time and and a hefty fine ffrom the ATF. All full auto weapons to be legal must have an AFT Form 4 tas stamp. The advantage of the full outo bolt is the weight. It assists with smoother cycling.
Will it make my M4 automatic?
Little Joey on May 27, 2018
BEST ANSWER: Only if you have the shoulder thing that goes up. Also, it may require you to make pew noises to jump start ot.
will this also work with .223 wylde?
edge1916 on Apr 16, 2018
BEST ANSWER: If you have to ask let me point you in the direction of the marlin 22lr rifle.
Looking to replace factory tiger ar556 bcg with a full auto bcg for reliability and fast firing. Will it work?
James H on Apr 14, 2018
BEST ANSWER: Where do you guys come from? Just funny to read some of the questions. You got no business with a MSR.
Will this work the same for 300 blackout as well as 556?
Madison B on May 13, 2018
BEST ANSWER: Yes, a 5.56 BCG will work in a .300 (Obviously, use a .300 barrel.) The rest of the AR can use standard 5.56/AR parts. Check out this article on alternative AR calibers:
Check out Pew Pew Tactical's read on "Best Alternative AR-15 Cartridges and Calibers"
I'm very new to this but could you tell me if that includes a firing pin?
Michael K on Jun 5, 2018
BEST ANSWER: Any complete AR-15 Bolt Carrier Group (BCG) from a reputable seller includes a firing pin & firing pin retainer. PSA BCGs are excellent. I have several in use and have no complaints.
Does each part in this Premium BCG meet or exceed mil. spec.?
jay G on Jun 7, 2018
BEST ANSWER: Much better than "mil. spec. I have bought @5 of these...They are great....


4.6 / 5.0
289 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Awesome !
Bought with charging handle while on sale. Great deal at a great price. Works great with my 300 blackout
July 21, 2018
4 months ago
Feel looks and finish and appearance
I own a lot of palmetto products
One of my bolt has at least 1500 rounds not much
But so far no problem
Happy with all my palmetto products
User submitted image
Added Jul 20, 2018
July 20, 2018
2 months ago
Fantastic price
Full auto bcg. Fantastic price
July 19, 2018
1 month ago
Great BCG
Works great. No problems at all.
July 19, 2018
1 month ago
Who needs a bump stock
My Palmetto State Armory bolt carrier group is great I use it with my echo trigger and it works like a charm
July 18, 2018
1 month ago
Just what I expected
A good bolt carrier, the gas key is peened correctly and I haven’t had any issues with it.
July 17, 2018
1 month ago
Great quality part for my build
July 17, 2018
1 month ago
I tested this BC with an PSA upper and Aero Precision receiver with PSA lower kit and I could not believe I was firing a semi auto. My friends thought I was firing on full auto. This BC simply the best I have experienced since my military and law enforcement days; and it has been many... many.... days ago. I will buy more.
July 17, 2018
1 month ago
Always great quality and fast shipping
Always great quality and fast shipping!
July 16, 2018
1 month ago
Outstanding BCG
Thanks PSA on time delivery got minds in 3 working days. The BCG was well oiled and of great quality will buy from PSA again also goes well with my Freedom Upper
July 16, 2018

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