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STNGR 5.56/.300 BLK Full Chrome M16 Bolt Carrier Group – C158 Bolt

SKU: STNGR-BCG-CHROME-C158

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SWARM Warranty
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Superior Strength, Smoother Operation, and Unmatched Reliability With The STNGR Chrome BCG

Engineered to military specifications and finished with a full chrome coating, the STNGR 5.56/.300 BLK Full Chrome M16 Bolt Carrier Group (BCG) with a Carpenter 158 (C158) Bolt ensures smooth cycling, easy maintenance, and consistent reliability in even the harshest conditions.

Easy To Clean

The slick chrome finish makes cleaning easier, reducing carbon buildup and ensuring hassle-free upkeep after high-round-count sessions.

Carpenter 158 (C158) Bolt

Shot-peened and magnetic particle inspected (MPI) for superior strength, ensuring flawless function and long-term reliability under heavy use.

Smooth, Reliable Cycling

The M16 carrier profile and chrome-coated surfaces reduce friction and fouling, ensuring consistent, smooth operation with minimal maintenance.

STNGR sources these chrome BCGs from one of the largest suppliers of bolts and carriers in the firearms industry.  When you buy a BCG from us, you’re getting a high-quality product that’s made in the USA, that’s trusted by dozens of brands and manufacturers, and we back every one with our STNGR lifetime warranty.

Specifications

  • Caliber: .223/5.56, .300 Blackout, .350 Legend
  • Finish type: Chrome
  • Carrier Type: M16/Full Auto Capable (Best for AR-15)
  • Carrier Material: 8620 Gun Steel
  • Gas Key Material: 4130 Steel
  • Gas Key Screws: Grade 8
  • Bolt Material: Carpenter 158
  • Extractor Material: 4140 Steel
  • Cam Pin Material: 8620 Steel
  • Firing Pin Material: 4140 Steel, Chrome Plated
  • Mil-Spec O-Ring and Gas Rings
  • Weight: 11.5 oz.
  • Country of Origin: USA

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

SWARM Warranty

STNGR USA products are warranted to the *original purchaser against any defects in materials and workmanship for the lifetime of the product. STNGR USA has sole discretion to determine manufacturer’s defects. The Swarm Warranty policy does not cover loss or theft. Cosmetic damage or changes that leave the product still in a functional condition, damage from improper use or intentional damages are also not covered by the warranty and will not be accepted. Items that have been modified or in any way altered from the original condition are not covered by the Swarm Warranty.

Eyewear lenses are fully covered by a 1 year scratch warranty. If you scratch or damage your lenses within 1 year of purchasing, STNGR will send you up to 1 pair of replacement lenses. This warranty only applies to the original purchase and not subsequent replacements. You also qualify for **20% off replacement lenses for life. Email  to receive your discount code.

Eyewear Lost & Broken Replacement Discount

Sometimes life happens. If you ever break or lose your sunglasses, no matter the reason, you’re covered with a hefty discount. Shoot STNGR an email at and you’ll get you hooked up with an exclusive 30% discount on future replacements.


*The original purchaser may have purchased from any of the following sources: Directly from STNGR (stngrusa.com or stngredge.com) or from an authorized dealer, distributor, or retailer. The original purchaser may be asked to show proof of purchase.

**The 20% discount is subject to replacement lens availability.

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