Masterpiece Arms MPA BA Bolt Action Mount, 30mm 1.125" 0 MOA, 1-Piece

The Masterpiece Arms MPA BA Bolt Action Mount is a precision one-piece scope mount built for shooters who demand absolute consistency and reliability when mounting quality glass on bolt action rifles. This 30mm mount sits at 1.125" height and delivers 0 MOA (zero cant), making it ideal for hunters and long-range shooters running modern rifle setups with Picatinny rail systems. If you're building or upgrading a precision bolt gun—whether for hunting, competition, or range work—this mount provides the repeatable zero and confidence you need to trust your optic when it matters.

Built from 6061-T6 aluminum and hard coat anodized to Mil-Spec T3 finish, the BA mount handles the rigors of field and range use without compromise. The engineered design accommodates both in-spec and out-of-spec rail systems with positive engagement, and its multiple locking lugs ensure absolute return to zero. That means you can move this mount between rifles and trust your zero, a huge practical advantage for shooters running a single quality optic across multiple platforms. Horizontal split rings handle the clamping, with superior surface engagement designed to lock your scope down securely.

The 30mm bore is held to extreme tolerances—roundness and cylindricity within .0002"—so there's no slop or misalignment. Four mounting locations on each side (front and back) on 20mm spacing give you compatibility with MPA accessories and modular mounting solutions. At just 6.8 ounces, it's built lean without sacrificing strength or precision. The rail-to-optic centerline height (1.125") is specified for the 30mm tube, and this system can handle objectives up to 50mm without issue—plenty of glass for any shooting discipline.