This compensator is the perfect aftermarket addition for flatter shooting on a sub compact build. This solid 17-4 stainless steel comp allows for not only gas redirection but less muzzle climb due to its weight. Which means faster follow-up shots. Compatible with Glock 43 / 43X / 48 9mm models not Sig compatible Designed to have the best fit with Zaffiri Precision slides Thread Fits 1/2 x 28 Finish: Black Nitride Machined from 17-4 Stainless Steel Includes: Vibra-tite Red 131 Thread Locker, Set Screws, and Tool Weight: 2.16 oz Compensators may require a different Recoil Spring Assembly (Guide Rod) weight depending on what ammunition you are using. If you are using a G48 with a Bob Cut this compensator may not be aesthetically pleasing as it also has a bob cut style front. Warning: This product is to be installed by a competent gunsmith. No liability is expressed or implied for damage or injury which may result from installation or use of this product.