After my first range trip w/my LWD Compensator for my G21SF...I'm amazed at how well this thing works.
The weapon cycled perfectly and shot like it never has before. I've had a few Lone Wolf threaded barrels on my other Glocks for suppressors and one 'two comp' on my G29 which shoots impressively but this 'screw on' compensator is freakin amazing.
If you own a G21SF its the second best accessory you can buy after the Kriss Super V 30 round mags (they fit perfectly!)
Thanks LWD for another great product!