Glock 21-30-37-38-39 .45 Auto/.45 G.A.P. Polymer Black gen5 so the shooter can fine-tune

so the shooter can fine-tune the weapon for his/hers personal standards

The fundamentals of pistol and/or rifle shooting

The system includes two different in length washers and two external springs

User adjustability

and moving parts through movement

Glock 21-30-37-38-39 .45 Auto/.45 G.A.P. Polymer Black gen5 so the shooter can fine-tuneDPM Magazine Floorplate Glass breaker Transform Your Magazine Into Convenient Car Glass Breaker When a handgun contains a magazine with the DPM floorplate with the incorporated carbide tip, the handgun itself can also be used as a hammerlike tool for the breakage of glass panes without disrupting the overall function of the handgun. Tactical & Rescue Use Professional Effectiveness Your Glass Breaker is Always Within Reach A Necessary Tool for Everyone