The Great Bolt Carrier Group Shortage of late 2020

outrider58 · Jan 11, 2021

Decoy said:
I don't know that i've ever seen a chrome lined Nitride carrier or if that is even a thing.

From the interwebs

Oops. You got me. I only have one nitride bcg and yes, it is chrome lined.
The rest of mine are phosphate/chrome.

There used to be a guy here who would rail against nitrite bcgs stating that many had bores milled to accommodate chrome lining, only to have been nitrided instead, making them out of spec.
I hope I got that right.

DutchV · Jan 11, 2021

outrider58 said:
Oops. You got me. I only have one nitride bcg and yes, it is chrome lined.
The rest of mine are phosphate/chrome.

There used to be a guy here who would rail against nitrite bcgs stating that many had bores milled to accommodate chrome lining, only to have been nitrided instead, making them out of spec.
I hope I got that right.

This is definitely true of gas keys. A lot of nitrided Aero BCG's come through with oversize gas key bores. Not sure about the carrier bores but it's certainly possible.

El_flasko · Jan 12, 2021

Thanks all. Bought them as backups so no worries either way

engineerbrian · Jan 12, 2021

I stopped by Engage this afternoon (the line was 6 people deep to get in the door) and noticed that they had a handful of BCG's in stock

Seagrave1963 · Jan 12, 2021

No claim as to quality, but here are some BCGs in stock (limit of 2):

https://blackrifledepot.com/black-n...er-group/?mc_cid=04915fa0bd&mc_eid=6b29782019

BrianS · Jan 12, 2021

Brownells has DD in stock.. https://www.brownells.com/aspx/search/productdetail.aspx?sid=56172&pid=27650

Silverlode · Jan 12, 2021

MGN in Frederick had Aero Precision phosphate BCGs in stock as of today. And stripped lowers for that matter.

omegared24 · Jan 15, 2021

Seagrave1963 said:
Don't snooze or you'll lose!

TOOLCRAFT 5.56 PHOSPHATE MPI FULL-AUTO BOLT CARRIER GROUP - NO LOGO

https://palmettostatearmory.com/psa...mpi-full-auto-bolt-carrier-group-no-logo.html

PRODUCT DETAILS
DETAILS
Mil-Spec Carpenter No. 158® Steel Bolt

Shot Peened; Mag Particle Inspected

Chrome Lined Full-Auto Carrier

Chrome Lined Gas Key; Hardened to USGI Specifications

Secured with Grade 8 Hardened Fasteners

Staked Per Mil-Spec

FEATURES
This Toolcraft Bolt is made of Mil-spec Carpenter 158 steel, shot peened, and mag particle inspected. Gas key is chrome lined, phosphate coated, and secured with grade 8 fasteners and staked per mil-spec. Full-auto bolt carrier is phosphate coated and chrome lined. Made in the USA.

Friend got his. Disassembled it and it looked good. Proper staking and chrome lining was nice.

Swapped the extractor spring for a Sprinco for him. Not a bad deal for this market.

As of now they're back in stock.

outrider58 · Jan 16, 2021

omegared24 said:
Friend got his. Disassembled it and it looked good. Proper staking and chrome lining was nice.

Swapped the extractor spring for a Sprinco for him. Not a bad deal for this market.

As of now they're back in stock.

OOS now.

shocker998md · Jan 17, 2021

Im in need of two 556 bcgs to finish out two builds. Ive got tons of email me when in stock set up but will watch and share here too.

Decoy · Jan 19, 2021

Just a quick update :

I received my GUNLAB bolt carrier groups today and they look pretty good.

The staking on the gas key is excellent. The finish on the carrier is matt but polished on the rails, gas key, gas run and bolt. Which is something I have not seen on a Nitride carrier before. The Bolt is marked MPI and the machining looks nearly perfect. At first glance it appears to be a solid BCG.

El_flasko · Jan 19, 2021

Decoy said:
Just a quick update :

I received my GUNLAB bolt carrier groups today and they look pretty good.

The staking on the gas key is excellent. The finish on the carrier is matt but polished on the rails, gas key, gas run and bolt. Which is something I have not seen on a Nitride carrier before. The Bolt is marked MPI and the machining looks nearly perfect. At first glance it appears to be a solid BCG.

Got mine the other day and bought they looked solid. Thx again for the lead

Decoy · Jan 19, 2021

no problem, glad they worked out for both of us :thumbsup:

Tactikool · Jan 22, 2021

Aero Nitride w/ Logo in stock.

https://armstopia.com/product/aero-precision-5-56-bcg-black-nitride/

These have been selling out quick everywhere I’ve seen them posted.

Tactikool · Jan 22, 2021

Tactikool said:
Aero Nitride w/ Logo in stock.

https://armstopia.com/product/aero-precision-5-56-bcg-black-nitride/

These have been selling out quick everywhere I’ve seen them posted.

Annnnnd they’re gone...

SkiPatrolDude · Jan 22, 2021

https://palmettostatearmory.com/psa...mpi-full-auto-bolt-carrier-group-no-logo.html

Tool craft BCG’s are in stock at PSA.

These are phosphate, CL carriers and gas keys, c158 bolt.

Used one of these for a friends build and it looked solid.

They were going for $129 not long ago but at $145 I’d say still not a bad deal for today’s market.

shocker998md · Jan 23, 2021

I was able to snag two areos from spicetac yesterday.

outrider58 · Jan 23, 2021

SkiPatrolDude said:
https://palmettostatearmory.com/psa...mpi-full-auto-bolt-carrier-group-no-logo.html

Tool craft BCG’s are in stock at PSA.

These are phosphate, CL carriers and gas keys, c158 bolt.

Used one of these for a friends build and it looked solid.

They were going for $129 not long ago but at $145 I’d say still not a bad deal for today’s market.

Thanks 'Dude. Grabbed one. :thumbsup:

IX-3 · Jan 23, 2021

SOLGW posted on Facebook yesterday they had shipments of BCG’s going out to Brownells, Primary Arms, and Kosher Surplus. They should be on their sites next week.

Duckncover · Jan 24, 2021

I check reddit/r/gundeals every day, multiple times a day. the good people over there continuously post in stock ammo as well as BCGs (and anything else firearm related).

The Great Bolt Carrier Group Shortage of late 2020

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