Trijicon TA51 ACOG Flattop Picatinny Rail Adapter (AC12001)

Description

The Trijicon TA51 ACOG Flattop Picatinny Rail Adapter (AC12001) provides a direct mount for Trijicon ACOG and select VCOG optics to standard MIL-STD Picatinny flat-top rails. Machined from aluminum with a matte black finish, it secures the optic using Colt-style thumbscrews for tool-free installation. The adapter preserves the intended optical axis heights for supported ACOG and VCOG models to maintain proper sighting geometry.

Key Specifications

• The overall length is 3.50 inches.
• The material is Aluminum.
• The finish color is Black (matte).
• Compatible optics include 3.5×35, 4×32, 5.5×50 ACOG; 1×42 Reflex (with ACOG bases); and 1-6×24 VCOG.
• The mount attaches to a standard Picatinny rail.
• The optic is secured with two Colt-style thumbscrews.
• The mount weight is 4.0 ounces.
• The fit is designed for flat top receivers.
• The mount is a 1-piece adaptor with no rings included.
• An additional adapter plate may be needed for RX30.

Purpose-built for mounting Trijicon optics on AR-style flat tops, the TA51 offers a concise, durable solution that keeps compatible ACOG and VCOG sights properly aligned. Its machined aluminum construction and thumbscrew attachment make it practical for field use while maintaining the low profile expected of optic-specific mounts.