Description

GM NIB Bolt carrier groups come. Perfect for your next 300AAC/5.56/.223 AR-15 build.

Specifications:

Brand GORILLA MACHINING
Caliber / Gauge .223 Wylde/5.56/300AAC NATO
Carrier Style Standard
Platform AR-15
Bolt Finish Nickel Boron
Bolt Material 9310 Steel
Carrier Finish Nickel boron
Gas Key Staked

Why do others substutute other inferior/untested steels? To decrease the cost of the part. Carpenter 158® is a high technology steel that is very expensive and can only be ordered in 20,000 lb mill runs. It is the only steel allowed by the US (and Foreign) Militarys for the very demanding needs of this high stress, critical part.

*NOTE: BARRELS & BOLTS MUST BE PROPERLY CHECKED FOR HEADSPACE PRIOR TO USE. FAILURE TO DO SO MAY RESULT IN DAMAGE, PERSONAL INJURY, OR DEATH*

LIFETIME WARRANTY:

Our products carry a lifetime, no questions asked, warranty. Simply put... Should any of our products fail, return it to us for a brand new replacement.

Live Inventory Search

Compare prices for 1 - Fausti USA 39203 20 26 SBS from all vendors

StorePriceShipping rate
$44.95
Firearms $9.99 | Ammunition $9.99 | Everything else over $99.99 FREE w/ code SHIP99
$44.98
Free over $600, Lay Away available
$62.32
Shipping per order: $10 accessories, $15 long guns, $20 handguns
$68.00
$0 - $39 on Firearms
$69.99
$7.95
$75.00
9.99-29.99 Per Item
$106.44
$9 Flat Rate
$161.96
Free Shipping no minimum
$1,849.99
$9.99 - $19.99
Out Of Stock
$42.26
Free Shipping no minimum
$44.95
Firearms $9.99 | Ammunition $9.99 | Everything else over $99.99 FREE w/ code SHIP99
$49.99
$9.99 for everything else
$67.99
$6.99
$139.65
$9.99
$149.78
Shipping per order: $10 accessories, $15 long guns, $20 handguns
$394.98
$7.95
$1,356.99
7.99
undefined
$9.95 Flat

Price History Chart

Comments (4)

Login or register to post comments

Got the BCG replaced and it was pretty quick. Looks great, and glad they did the right thing taking it back to exchange, restored my confidence in Gorilla Machining customer service, will keep shopping!

0 votes
0 votes

Well, seemed like a good deal until it arrived with a gas key that is completely not staked at all and rough tooling marks. The customer service reply says I could return it for an exchange, so I ask for a return label and get no further reply . I don’t feel like I should pay to ship back a defective / not correct product.
Follow up, after a few days and this review I’ve got a reply and a return label - we’ll see how it goes

0 votes
0 votes

Also find it odd that they put in a head space check on what should be an otherwise swap stock product. Might be min-spec, sorry mil-spec, but maybe that's too much to ask.

0 votes
0 votes

Yeah you don’t really see such a disclaimer much elsewhere. Most products I’ve got from them are ok , one barrel from them did not headspace with any of several new bcg’s

0 votes
0 votes
Login or register to post comments