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

More Views

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

Add To:

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
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 516446914

Questions and Answers

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 37 questions Browse 37 questions and 187 answers
Where can I get the manufactures recommendations for lubricating this NiB BCG?
Cody W on Jun 2, 2018
BEST ANSWER: YouTube. Plenty of videos. My favorite is "How to Oil and Lubricate Your Gun (and how NOT to)"
Is this a full auto bolt?
Donald C on Apr 16, 2018
BEST ANSWER: Yes, rear under cut is M16 full auto.
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.
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.
What is the weight of this BCG?
Joseph H on May 5, 2018
BEST ANSWER: Mine weighs 11.7oz
Full auto bolt?
William Q on Apr 16, 2018
BEST ANSWER: Yes, rear under cut is M16 full auto.
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
BEST ANSWER: Yes. the carrier is an AISI 8620 medium strength steel alloy. No need to spend big money on high strength steel on a bolt carrier.
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 i always order full auto bcg for the price difference try nickel boron. 89.00 or less sometime watch for sales holidays etc.enhanched nickel trigger is also a nice option watch for sales
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
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.
Can i use that to 5.56 semi auto?
Gerry salvador on Dec 7, 2018
BEST ANSWER: You sure can with nickle boron you can expect smother cycleing and longer life verry good choise
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!
Does it work with piston driven actions?
Andy H on Jun 20, 2018
BEST ANSWER: This BCG will not work with piston system.
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.
Can this work on 224 Valkyrie?
Said S on Dec 28, 2018
BEST ANSWER: No the bolt face is larger in diameter than a 5.56 bolt. .224 Valkyrie uses a 6.8 cartridge that's necked down to .224. The carrier is the same, however the bolt would not work with .224 Valkyrie.
Is this a semi auto or full auto bcg?
Randy J on Dec 12, 2018
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).
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.
Witch bcg is better? This one or the PSA one? I think the PSA one has a better bolt right?
Jason S on Jan 2, 2019
BEST ANSWER: They are essentially the same except one has a logo and the other has a nickel boron coating. The nickel boron has a less porous finish and is easier to clean and maintain.
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.
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
I'm looking at this one and its description says premium. What's the difference between this one and the regular nickel baron?
JD R on Jan 2, 2019
BEST ANSWER: From my experience buying these for pass few years different ones, the premium one is smoothed out on the edges and more time went into finishing the ends. Makes for smoother action of the bolt, but I’m not an expert this is just my opinion. I have built about 12 AR15’s from this website.
will this bcg work in a S&w M&P sport 2?
Roger C on Dec 17, 2018
BEST ANSWER: Works with any 5.56/.223 AR-15 upper which your rifle has.
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)..
Will this carrier work in a Ruger AR 5.56?
Stanley22 on Dec 31, 2018
BEST ANSWER: This BCG is mil-spec and therefor will work in your mil-spec RUGER AR 5.56....


4.8 / 5.0
463 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great Deal
Great for the money. Nice product!
January 21, 2019
1 month ago
Great bcg... finish is hard and smooth
January 21, 2019
1 month ago
So far it has met all of my expectations.
Great product, great price
January 20, 2019
1 month ago
Looks awesome
Looks awesome and runs smoothly in my rock river. Well pleased with this bcg
January 20, 2019
1 year ago
Works as it should. Cleans easy, many rounds using it, and it works great!
January 20, 2019
2 months ago
Excellent value! Can’t beat it!
Great BCG for an amazing value! Don’t hesitate!
January 19, 2019
1 month ago
Easy Clean
This is easy to clean, and super slick. It does what it should
January 18, 2019
6 months ago
Great Bolt, Increased Lubricity, Reduced Friction
PSA, PLEASE MAKE A 308 BOLT with Nickel Boron !!!

Basically the Nickel Boron finish, with a little oil, sliding on the other steel parts ... let's just say IT WORKS GOOD. Like it all had a fresh & perfect Lube job with the best oil by a Good Gun-Smith.

If PSA can make a quality AR15 bolt like this, they can make a quality AR10 bolt too.

Please, PSA, Remember, for us Adults, you're sort of like Santa Claus. Make those quality gun parts and we don't need no stinking Amazon !!!

If PSA was a football team I'd be rooting for it. Topless Cheerleaders and Nickel Boron Bolts.

Got my Priorities straight, I don't need no Sensitivity Training !! :-)
January 17, 2019
2 months ago
Quality bcg. Looks sharp, functions flawlessly.
Got this for an xm16e1 build to mimic the old style chrome bcg. Performance is excellent, easy to clean. Fit and finish is perfect. I'm a loyal Palmetto State Armory customer, and this is what I've come to expect from them. Great job PSA! Now start making retro ar parts, please!!
January 17, 2019
2 months ago
Great service, again.
Product was exactly as advertised. Was shipped very quickly, even during the Christmas holiday. Very pleased with the product!
January 15, 2019
1 month ago

Customers Who Viewed This Item Also Viewed