XCaliber FirearmsHK 3 Lug Adapter: 1/2x20
Muzzle Device · attaches to 1/2x20 · presents HK 3-Lug · fits 625 suppressors in the catalog
length
1.41″
thread
1/2x20
+8 more thread pitches
material
Carbon Steel
standard
HK 3-Lug
MSRP
$50
A barrel adapter screws onto your rifle's threaded muzzle and stays there. It gives the muzzle a mounting interface, so the suppressor attaches to the adapter instead of the bare barrel threads. One adapter per rifle lets you move one suppressor between them. Many are quick-detach designs, and some also work as a muzzle brake or flash hider.
This one fits barrels threaded 1/2x20 and presents the HK 3-Lug interface. A suppressor with a matching HK 3-Lug mount attaches to it. It comes in 9 thread pitches, so pick the one that matches your barrel.
How mounting systems work →- Type
- Muzzle Device
- Overall length
- 1.41″
- Material
- Carbon Steel
- Finish / treatment
- Black
- Attaches to
- 1/2x20
- Presents
- HK 3-Lug
- MSRP
- $50
Not published by the manufacturer: weight.
Prices are manufacturer's suggested retail (MSRP). What you pay may differ.
625 suppressors in the catalog take this part, across 95 manufacturers including AAC, AB Suppressor, Abel Co. You aren't locked into one manufacturer's suppressors.
- XCaliber Firearms SeaFire Diamond 45ACP
- AAC 300-SD
- AB Suppressor A-10 5.56
- …and 622 more.
Which ones fit your barrel and host?
See all 625 in the Builder- .578x28
- 1/2x20
- 1/2x28
- 1/2x36
- 11/16x24
- 5/8x24
- 9/16x24
- M13.5x1LH
- M14x1LH
XCaliber Firearms sells this part in 9 thread pitches. They are one product on this page; pick the pitch that matches your barrel in the Builder.
- Adapts a 1/2-20 threaded barrel to an HK 3 Lug muzzle device. Clearance bore diameter 0.372", outer diameter 0.767", overall length 1.405".
- High-quality carbon steel, black finish.
- The adapter can mount any accessories with an HK 3 lug mount. Compatible with Silencer Co, Gemtech, AAC and most other mounts.
- Please check your firearms manual or contact the manufacturer to verify your threads.