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Price history
Lowest in-stock price in the last 30 days: $49.46 at MidwayUSA. Dashed line = out of stock. Tracking since Oct 31, 2026.
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$41.95
$41.95
$49.46
MidwayUSA
$49.46
$49.46
$49.46
Palmetto State Armory
$54.99
$54.99
$54.99
Since Oct 31, 2026.
About this part
The Griffin Armament EZ-LOK Universal QD Barrel Adapter - 1/2x28 is a barrel from Griffin Armament. It's sold by 3 stores, from $41.95 to $54.99. The lowest in-stock price in the last 30 days was $49.46 at MidwayUSA.
From the manufacturer
Upgrade your pistol suppressor mounting experience with the Griffin Armament EZ-LOK Universal QD Barrel Adapter in 1/2x28 threads. This precision-engineered thread adapter transforms traditional direct-thread setups into a fast, secure, and repeatable quick-detach system designed specifically for tilt-barrel handguns. Key Features and Benefits Single-orientation mounting allows attachment in approximately 4-5 seconds, eliminating the guesswork and multiple positions common with legacy systems. Internal taper locking surface engages securely with compatible pistons to maintain alignment and drastically reduce the risk of baffle or end cap strikes during firing. Stays installed on the barrel as a thread protector, shielding expensive barrel threads while enabling rapid suppressor attachment and removal without repeated threading. Patent-pending EZ-LOK design delivers a universal QD interface that simplifies swapping between hosts while preserving the same overall system weight as traditional direct-thread pistons. Technical Specifications Thread Pattern: 1/2x28 (indexes off the barrel shoulder for standard, sub-compact, compact, and full-size tilt-barrel firearms) Material: 17-4 stainless steel, H900 heat-treated for superior durability and wear resistance Finish: QPQ Nitride for a durable, corrosion-resistant black appearance Compatibility: Works with Griffin Universal QD pistons (sold separately); .22 caliber compatibility (.223/5.56/.224 and similar) Dimensions: Approximately 1" length, 0.75" width, 1" height; weight 1.82 oz Why Choose the EZ-LOK Barrel Adapter? Traditional pistol suppressor mounting often leads to loosening during strings of fire and time-consuming alignment. The EZ-LOK adapter solves these pain points with its taper-lock interface and single mounting orientation, providing consistent performance and faster setup for range sessions or training. Its robust construction ensures reliable service across a variety of 9mm and smaller caliber pistol platforms. Installation and Use Thread the adapter onto your barrel shoulder using a 3/4" socket for proper torque. Once installed, pair it with a compatible EZ-LOK piston on your suppressor for secure, tool-free attachment in seconds. Always verify fitment for your specific firearm model. Experience the simplicity and security of modern QD mounting-add the Griffin Armament EZ-LOK Universal QD Barrel Adapter to your setup today.