Add even more weight to your rifle and still have the outside M-Loc profile free from those unsightly weight bolt ons, the upgrade system combined in at 1.2 kg of weight internally right were you need it, up front and down low of your rifle,
Back Bone extra heavy T-slot weight providing centre mass to the rifle chassis
Weight 510g-18oz
Back Bone extra heavy T-slot weight providing centre mass to the rifle chassis
Weight 510g-18oz
Add even more weight to your rifle and still have the outside M-Loc profile free from those unsightly weight bolt ons, the upgrade system combined in at 1.2 kg of weight internally right were you need it, up front and down low of your rifle,