Griffin Armament PI1228 CAM-LOK piston barrel adapter for 1/2X28 threaded barrels. Converts direct-thread pistons to a rapid, indexed QD mounting system with three 120° positions and a durable QPQ nitride finish.
The Griffin Armament PI1228 CAM-LOK piston barrel adapter provides a quick, indexed mounting interface for 1/2X28 threaded barrels. Its CAM-LOK (Covert Application Mount-Locking) system gives three 120-degree mounting positions for rapid attachment and secure seating. The adapter is intended for use with compatible universal QD pistons and is constructed to reduce common baffle and end-cap strikes while lowering side concussion and visual disturbance compared with blind-muzzle configurations.
Product Specifications
The manufacturer is Griffin Armament.
The manufacturer part number is PI1228.
The product type is Adaptor.
The subcategory is Suppressor Accessories.
The model is listed as Barrel Adapter.
The threaded interface is specified as 1/2X28.
The CAM-LOK system offers three 120-degree mounting positions for rapid indexing.
The material is listed as 17-4 stainless steel.
The finish is QPQ Nitride.
The adapter is compatible with Universal QD pistons (sold separately).
Coarse threads are top cut to increase durability and wear resistance.
A 3/4 or 19mm wrench pattern accommodates a socket wrench for secure installation.
The internal bore design reduces side concussion and visual disturbance versus a blind muzzle.
The total system weight is described as identical to legacy direct thread pistons.
UPC: 791154084908.
The PI1228 CAM-LOK adapter is a practical upgrade for shooters who want faster, indexed mounting and improved alignment on 1/2X28 pistol barrels. Its stainless construction and QPQ nitride finish emphasize durability and serviceability under repeated use, making it suitable for suppressed target work and carry-oriented setups where rapid, reliable attachment matters.
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