Primary Weapons Systems Muzzle Device & Alignment Shim Set for 1/2×28
A replacement 10-piece shim kit for your 1/2×28 threaded weapons
New muzzle brakes normally supplied with the necessary washers, nuts, or shims; however sometimes replacement washers are needed if one is damaged or if installing a muzzle device on a different gun. Just install the necessary combination of shims to get the precise alignment you need.
Each shim set ships with:
- 1 of Shim 1 (largest)
- QTY 8 of Shim 2 (medium)
- QTY 1 of Shim 3 (smallest)
The large shim can be used to give the installer one half of a rotation or as a spacer for barrels that do not have relief cuts behind the threads. Shim 2 is used in varying quantities to achieve the proper alignment of your muzzle device. This shim gives the installer approximately 45 degrees of rotation. If needed, Shim 3 can be used where smaller degrees of rotation are needed for proper alignment.
1911hombre (verified owner) –
Excellent replacement for Surefire shim kits that are forever out of stock. All you need! Rooftop Rocks!
Nick (verified owner) –
Affordable, solid shims at sweatshop speeds.
If I (someone with limited experience) can get an aligned can with these, so can you 🙂
Robert Cortinas (verified owner) –
I got these to take one of my 3prong WarComp I got from the sweatshop off one rifle to install it on another. They work just as well as what came with the SF WarComp! Definitely would buy again!
Khan (verified owner) –
Seems to be good quality.