Cryptic Coatings AR-15 9mm Luger Bolt Carrier Group

Cryptic Coatings 9mm Glock/Colt Style BCG – Bolt Carrier Group

Upgrade your 9mm AR-15 pistol caliber carbine (PCC) with the Cryptic Coatings 9mm Bolt Carrier Group. Purpose-built for 9mm — not adapted from a rifle BCG — this complete bolt carrier group delivers reliable feeding, extraction, and ejection with both Glock and Colt-style magazines (and drop-in magwell adapters).

The advanced PVD/CVD coating provides exceptional lubricity, reduced friction, lower operating temperatures, less carbon fouling, and easier cleaning while giving your build a distinctive high-luster bronze finish. Backed by Cryptic Coatings’ lifetime warranty.

Key Features

• Compatible with Glock and Colt-style magazines + drop-in magwell adapters
• Extra heavy-duty 4140 heat-treated external extractor specifically designed for 9mm case geometry
• Threaded removable extractor pin for easy field service
• Removable counterweight (threaded set screw) for tuning carrier mass to your buffer/spring setup
• Aluminum guide key installed with self-locking bolts (no staking required)
• Mil-spec 8620 aircraft-quality steel carrier, heat-treated to 60-61 RC
• Stainless steel firing pin with spring
• Dust cover compatible
• Works with most aftermarket triggers and any mil-spec buffer/spring assembly (JP, Armaspec, etc.)
• Total weight: 13.5 oz

Technical Specifications (from Cryptic Coatings)