Lapco Autococker Breech Sizers - .678 Elbow & Knee Pads The HK Army Attack Beanie

The HK Army Attack Beanie series features custom woven fabrics and an embroidered HK Army Icon logo on the fold

Lifetime Manufacturer Warranty

Gearbox: 8mm Custom

Padded Elbows

The barrel backs are perfectly bore sized at

Lapco Autococker Breech Sizers - .678 Elbow & Knee Pads The HK Army Attack BeaniePrevents Barrel Roll Out in closed bolt markers, like Autocockers and Cocker Pumps. The Breech Sizer will center the ball ensuring an even cushion of air around the ball before it enters the control bore of the barrel. This produces optimal accuracy and gas efficiency than with the barrel alone. Product pictured is a . 687 Bore but this product is for a . 678.