Dentler mounting rail BASIS - S&B (Stahl)On each base rail, the mounting rail is always interlocked in all axes with the same turning moment absolutely free of play = precondition for a 100% reproducible optic exchange on one or several weapons.
Dentler Base Rail BASIS - Heym SR21On each tbase rail, the mounting rail is always interlocked in all axes with the same turning moment absolutely free of play = precondition for a 100% reproducible optic exchange on one or several weapons.