HK ARMY SLR/KLR Pure Lens piston head Also be sure to follow

Also be sure to follow the instructions on the correct sticker placement for both the above mentioned trigger sticker and the selector plate sticker

and all day comfort w/ reinforced knuckle protection and anti-slip grip

but this adapter will work for any regulator

Semi-auto pistol that uses USW

HK ARMY SLR/KLR Pure Lens piston head Also be sure to followThe KLR SLR PURE Lens System is composed of virgin optical grade GE polycarbonate inherently UVA \ UVB and IR shielded, every KLR SLR lens shields your eyes from dangerous sunlight in every playing condition. The Pure interior thermal lens features 3M Foam Sealant, trapping a layer of cool barrier of insulating air, eliminating condensation and encouraging evaporative cooling. Features Lens fits SLR and KLR goggle systems Dual layer anti fog thermal