PWS Muzzle Shim Kit .223/5.56, 9mm

Primary Weapon Systems muzzle device alignment set (shim kit) for 1/2×28 barrels and 1/2×36 9mm barrels.


In stock

That's right. We offer 14 day worry free returns on all non-serialized items. Plus get free shipping on orders over $99. Learn more

You can now pay over time without the compounding interest charges of credit cards thanks to Credova! Get approved now with no impact to your credit. Learn more

product questions?

Our team is here to help

contact us

This is a PWS (Primary Weapon Systems) muzzle device alignment set for 1/2×28 barrels and 1/2×36 9mm barrels. It can be used on .223, 5.56 and 9mm caliber barrels. This shim kit allows you to “time” the muzzle device on your barrel to get a precise alignment.

Each shim set ships with QTY 1 of Shim 1 (largest), QTY 8 of Shim 2 (medium), and 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.


  • Each shim set ships with QTY 1 of Shim 1 (largest), QTY 8 of Shim 2 (medium), and QTY 1 of Shim 3 (smallest)
  • Material: Steel
  • Finish: Raw Steel
  • Outer Diameter: 0.75″
  • Inner Diameter: 0.51″
Weight0.015 lbs
Dimensions3.2 × 3.1 × .01 in

Primary Weapons Systems


Primary Weapons Systems


There are no reviews yet.

Be the first to review “PWS Muzzle Shim Kit .223/5.56, 9mm”

You might also like

Save 10%
16" AR-9 Barrel 1/2x2816" AR-9 Barrel 1/2x28
Save 10%
Save 11%
Save 25%
9mm 5.4oz Carbine Buffer Kit9mm Buffer Spacer

Exceptional Firearms, Craftsmanship and Innovation

Angstadt Arms is born from a rich heritage of master gun makers, a family legacy spanning centuries, now reimagined with innovation and technology. We believe every gun owner is part of a grand story and we invite them to add a new chapter with us.

learn more
PWS Muzzle Device Shim Kit
PWS Muzzle Shim Kit .223/5.56, 9mm

In stock