Griffin Armament CAM-LOK Barrel Adapter - 13.5X1LH (PI1351LH)

The Griffin Armament CAM-LOK Barrel Adapter (PI1351LH) is a quick-detach piston interface designed for Browning-style tilting-barrel pistols. If you run a suppressor on a pistol that uses a tilt-barrel action—think most modern handguns—this adapter lets you swap between suppressed and unsuppressed configurations in seconds, with a rock-solid lock-up that beats traditional single-piece direct-thread pistons. The CAM-LOK system is patented and built around a covert application mount architecture that prioritizes both speed and security on the firing line or in the field.

Built for shooters who demand reliability under pressure, the adapter features a forward taper surface that locks securely with the interfacing piston, which helps eliminate the baffle and end cap strikes that can plague poorly-seated suppressors. The coarse threads are cut at the top for added durability and wear resistance—important when you're mounting and dismounting regularly. Installation is straightforward: the 3/4-inch (19mm) wrench pattern accepts a standard socket wrench for snug, confident installation every time.

This is a 13.5×1 left-hand threaded adapter, compatible with Griffin's Universal QD pistons (sold separately). The QPQ Nitride finish delivers both aesthetics and protection, with a clean black appearance that resists corrosion. Total system weight matches legacy direct-thread pistons, so you're not adding bulk to your suppressor package. The internal bore geometry is optimized to reduce side concussion and visual disturbance compared to blind muzzle designs, keeping your shooting experience smooth and your sight picture uncompromised.

Key Features

• Patented CAM-LOK (Covert Application Mount - Locking) quick-detach interface for rapid suppressor mounting and removal
• Three 120-degree-separated mounting positions for flexible, fast attachment
• Forward taper surface locks securely with piston, reducing or eliminating baffle and end cap strikes
• Coarse top-cut threads increase durability and wear resistance under repeated use
• 3/4-inch (19mm) wrench pattern for easy installation and adjustment with standard socket wrench
• Compatible with Universal QD pistons (sold separately)
• Optimized internal bore reduces side concussion and visual disturbance
• QPQ Nitride finish provides durable, attractive black protection against corrosion
• Weight identical to legacy direct-thread piston systems—no added bulk

Specifications

Frequently Asked Questions

What pistols does the CAM-LOK adapter fit?

The CAM-LOK is designed for Browning-style tilt-barrel action pistols. Verify that your pistol has a tilt-barrel design and a compatible 13.5×1 left-hand threaded barrel before purchase. The adapter threads directly onto the barrel.

What do I need to buy separately?

The adapter itself is the barrel interface; you'll need to purchase a Griffin Armament Universal QD piston separately. The piston attaches to the adapter and mates with your suppressor.

How do I install the CAM-LOK adapter?

The 3/4-inch wrench pattern accepts a standard socket wrench for installation on the barrel. Use the wrench to thread the adapter onto your barrel with a secure, firm fit. No special tools beyond a standard socket wrench are required.

Can the adapter reduce baffle strikes?

Yes. The forward taper surface locks securely with the interfacing piston, which is designed to reduce or eliminate common baffle and end cap strikes that can occur with less secure mounting systems.