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


Quick Overview

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

Questions and Answers

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Browse 43 questions Browse 43 questions and 222 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.
Do you have this in left handed?
John C on Dec 30, 2018
BEST ANSWER: Just turn it around backwards and it should work fine for left-handed uppers. Where did you get your left-handed upper?
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.
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
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
Who is the manufacturer?
STEVE on Aug 1, 2018
Can I get this in left hand action?
Jim N on Dec 28, 2018
BEST ANSWER: Just turn it around backwards and it should work fine for left-handed uppers. Where did you get your left-handed upper?
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!
I see that the bolt is listed as a full auto, new to an AR platform, must I fire in full auto?
larry I on Feb 10, 2019
BEST ANSWER: Full auto bolt just means that it is mil-spec. Some manufactures cut the underside rear off the bolt to make it unable to be used for full auto firing. This bolt could be used in a gun that was capable of firing full-auto, provided it was accompanied by full auto trigger group and auto Sear. Unless you have those parts, and a stamp from the government, your gun will NOT fire full auto
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).
Can this be used with a 223 wylde barrel?
Zion R on Feb 15, 2019
BEST ANSWER: I have it on my wylde 11 in barrel and it works great. Get some steel wool as it shows every spec of carbon fouling. I also notice I have to clean it every time I shoot it. Crud gets in there deep if I don't. So don't sight rifle for hunting trip and not clean it before you go. I do lover the clean look. I run one on my .300 blk pistol as well.
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.
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: Their other NIB BCG had their logo on it. This one doesn't have the logo.
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.
Is the 9310 steel Nickel Boron BCG better than than the Carpenter 158 Nickel Boron ?
Dave L on Jan 29, 2019
BEST ANSWER: For the bolt 158 or 9310 is what i want.I've read that 9310 is about 8% stronger.Carpenter 158 is the milspec. I have both and cant tell any difference.


4.8 / 5.0
614 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
So far, So awesome!!!
Bought this for my AR pistol build. So far about 500 rounds it has cycled and no issues what so ever. Awesome BCG and will buy again for another AR build.
March 19, 2019
2 months ago
Great buy!!
Very smooth, and reliable BCG, I am Definitely going to replace all of mine with this!!
March 18, 2019
1 month ago
Very nice works great thanks
March 16, 2019
2 months ago
Great, no issues. Would buy again.
March 15, 2019
1 year ago
Sweet deal...
A real sweet deal on this.... smooth action and easy to clean...
March 14, 2019
2 months ago
BCG is Butter Smooth!
March 14, 2019
2 months ago
Love it! Had 400 rounds through it and the gun powder and residue came right off with a rag.
March 14, 2019
2 months ago
Awesome BCG. Highly recommend.
Love this bcg. I don't have to run my AR wet and it cleans with just a wipe off a towel. I have these for all my rifles.
March 14, 2019
2 months ago
Can't beat this BCG
It would be really hard to find another comparable BCG for this price and quality. I have purchased 4 and could not be happier. Can't really find a reason not to have a few extras. BTW, bought a Lantac BCG from another vendor and while it was new, scored the ramp area in only 21 rounds of M193, Maybe I just got a bad one but this has not been an issue with these PSA Premium NiB C158 groups. Sent the Lantac back after not getting a response from their Product Manager. Thank You PSA for great products, service, and support!
March 14, 2019
Works well
This BCG is a very nice addition to my rifle. It looks great with an all black rifle and I’ve not had any issues firing
March 13, 2019
2 months ago

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