The pin set screws are set with Loctite at the specific tension we recommend and will generally never need an adjustment. Tightening the base pad screw is not recommended and may be difficult because the screw is set with Loctite; trying to force the set screw to turn could result in stripping the screw. We do not warranty base pads for stripped heads on set screws or pins lost in result of tampering with the set screw. Ideal for use with any TTI Magwell to help speed up reloads while maintaining a low profile footprint overall. Great for concealed carry Production Division and IDPA. The Taran Tactical Innovations +0 Carry GLOCK Base Pad works on GLOCK models 17/17L/19/19x/22/23/24/26/27/31/32/33/34/35/45