Premium 5.56 Nickel Boron BCG with Carpenter 158 Bolt - No Logo

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Premium 5.56 Nickel Boron BCG with Carpenter 158 Bolt - No Logo

In stock

Regular Price: $ 149.99

Special Price $ 89.99

Quick Overview

free shipping Free Shipping applies to this item only and not the entire order.

SKU: 516446914
UPC: 516446914
MFR#: 516446914

Caliber: 5.56/.223
Finish: Nickel Boron Coating
Bolt Steel: Milspec Carpenter No. 158
Shot Peened Bolt
High pressure tested
Mag particle inspected
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

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For packaging considerations, BCG will be packed dry.   Nickel Boron's natural surface lubricity is not a substitute for normal rifle lubrication.   Please follow all manufacturers recommendations for lubrication.   It is possible to discolor the finish with dirty ammo or prolonged use without cleaning.

SKU: 516446914
SKU 516446914
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
SKU: 516446914

Questions and Answers

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Browse 23 questions Browse 23 questions and 134 answers
Is this a full auto bolt?
Donald C on Apr 16, 2018
BEST ANSWER: Yes, rear under cut is M16 full auto.
Full auto bolt?
William Q on Apr 16, 2018
BEST ANSWER: Yes, rear under cut is M16 full auto.
Is the bolt carrier chrome lined?
Kevin F on May 28, 2018
BEST ANSWER: Probably not because Nickel Boron is much harder than chrome so would seem pointless.
Will this BCG function with a .300 Blackout upper?
Ron P on Apr 18, 2018
BEST ANSWER: Yes, a 5.56/.223 bolt will work with 300blk being that 300blk is based off the necked up 5.56/.223 case. So bolt, mags and lower are interchangeable, just different barrel.
What is the weight of this BCG?
Joseph H on May 5, 2018
BEST ANSWER: Not light. Well made and slick, but heavy. I have three at home. I will weigh one. Not recommended for lightweight specialty build. Highly recommended if weight is not an issue.
Where can I get the manufactures recommendations for lubricating this NiB BCG?
Cody W on Jun 2, 2018
Were is it made ?
Jeremy H on Apr 27, 2018
BEST ANSWER: Made in the USA.
What is the carrier made of? 8620 steel?
KRidge on Aug 17, 2018
I assume this bolt will also work for .224 Valkyrie builds as well? Thanks,,,,Ed
lonestar on May 5, 2018
BEST ANSWER: You need the 6.8 SPC bolt and 6.8 magazine for the 224
Who is the manufacturer?
STEVE on Aug 1, 2018
I’m looking at upgrading my bcg. I’m still running my factory milspec bcg. So this would my first bcg upgrade. For Ar 15 So here’s my question it says it’s a full auto can this be used for semi auto?
Gabe A on Jun 17, 2018
BEST ANSWER: Yes. It can be used for either
Will this work on my air soft rifle.😆?
Anthony M on Sep 1, 2018
BEST ANSWER: Yeah totally, just don't forget to include the charging handle. It'll work just fine and add a shine to your air soft rifle.
Does it come with a FIRING PIN?
Vaughn S on May 17, 2018
I have recently purchased a PSA-15 5.56 pistol. Will it fit in my AR pistol?
(just want to make sure it is compatible in a AR pistol setup.)
Thank you.
Tim H on Jul 22, 2018
BEST ANSWER: The receiver is no different for an AR pistol than for a rifle. What makes the difference in an AR pistol is the manner in which the receiver is originally stocked. That being the case, there are no changes made to either the upper or lower receiver that would require a different BCG than is common for a rifle. That being the case, this BCG will function properly in an AR pistol chambered in 5.56.
Will this work in a DPMS Oracle 5.56?
Huntindad80 on Jul 10, 2018
BEST ANSWER: Absolutely! Best buying decision I have ever made on a BCG. Quality is excellent, well worth it. I use my old BCG as a backup and this is now my primary. Smooth as butter!
I have one of your nickle Boron .223 / 5.56 bcg already for my .223 . Great bcg. Will this bcg work with 300 blackout as well ?
Tim C on Apr 30, 2018
BEST ANSWER: Yes, any standard 5.56 / .223 BCG will work in your .300 blackout.
semi Auto application ok?
Nathan on Sep 18, 2018
BEST ANSWER: I have this BCG in four AR 15's semi auto's with no firing or cycling issues (about 500 rounds per rifle).
Does it work with piston driven actions?
Andy H on Jun 20, 2018
BEST ANSWER: This BCG will not work with piston system.
Trying to build AR9 pistol but not finding a BCG for 9mm. I don't suppose this will fit/work?
V L on Aug 3, 2018
BEST ANSWER: Will not need a 9mm bcg...there are plenty out there, and they usually cost more than a regular bcg
Can anyone tell me what the difference is between this bcg and the other nib bcg?
Jay K on Jul 20, 2018
BEST ANSWER: This bcg is made of a carpenter steel vs a standard steel/Alloy most companies use. Carpenter is a company that has a specific process for how they make their steels and they are generally very high quality. I have one of these and I have roughly 15,000 rounds through it so far with no issues.
Does this BCG work with 6.5 Grendel or is a different bolt required?
akre2533 on Aug 27, 2018
BEST ANSWER: the grendel uses a totally different bolt ..Which one depends on whether its a type one or type two chamber.
What’s the difference in your premium nickel boron Bcg with carpenter bolt than your other nickel boron bcg not labled premium?
Brass buster on Sep 18, 2018
BEST ANSWER: The Carpenter 158 Nickel Boron BCG I prefer. Stays cleaner in my opinion than the Nickel Boron (Non Carpenter 158)..
Are bolt MP/HP marked?
Michael j on Aug 1, 2018
BEST ANSWER: The Bolt is Stamped with MPI which stands for Magnetic Partical Inspection just behind the Bolt Head


4.9 / 5.0
306 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Very nice
fit in very well. looks very clean and cycles great. no issues with it so far
September 21, 2018
2 months ago
these are great, this is the 2nd that I have bought.
September 21, 2018
2 months ago
such nickel so boron
September 20, 2018
2 months ago
First NB carrier. I like it
Finish looks great and smooth. Tooling looks very good. No marks or flaws I could see.
September 20, 2018
2 months ago
Great product for the price!!!
The fit and finish of the BCG were better than expected. No tool marks to mention...good work PSA...
September 19, 2018
2 months ago
Cant beat PSA for price and quality 2000 plus rds and functions great with just about any ammo
September 19, 2018
6 months ago
Great BCG I would recommend it to anyone for any build
September 18, 2018
2 months ago
Good quality, ready to go out of the gate
September 18, 2018
2 months ago
Well worth it! Saves sooo much time in cleaning and very slick
First time I’ve been able to shoot it today in my PSA 16” pistol length .300 blackout upper and it was well worth every penny. I used 2 BCGs, one being the nickel boron BCG and other being the standard black one included with the upper.

Shooting reloaded 150 grain .300 blackout rounds and with a light coat of CLP on both BCGs, i only shot maybe 10 rounds with the standard BCG and then switched to the nickel boron BCG to shoot around 60-70 rounds. When the time came to clean both of them, the nickel boron cleaned up with a quick wipe down with a patch and was still very slick to the touch. the standard BCG was tougher and needed actual brushing to get the carbon off, you would think I shot 30 times the amount of ammo through the standard BCG after the nickel boron BCG cleaned up so quickly. I wouldn’t use anything else other than the premium nickel boron BCG in any of my builds
Shooting with the nickel boron BCG, standard BCG is on the table
Shooting with the nickel boron BCG, standard BCG is on the table
September 17, 2018
2 months ago
Great bolt carrier group. Funs perfect.
September 17, 2018
2 months ago

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