NEW TRUE- FITTING SEALS! Our new breach seals are made from a durable, yet flexible material. Flexible permitting best flow coverage over breech surface and tough sub straight through-out keeping tight resistance between two sealing planes. The seals construction combines two necessary features required in any good sealing situation. Elasticity to cover well over surface imperfections impeding any blow-by of air, and a tough sub-straight to hold radial shift to a minimum staying perpendicular flat to surface during burst force. These two key elements retain pressure bang on, straight-away down the barrel! A precise, new robust seal designed exclusively to inhibit any pressure loss! Radial machined corners to eaily locate allowing for a very EZ install, and, install of a projectile as well. Removes easily and will not burn. olika färger