Arisaka Defense MCX Zero Retention Clamp for Spear LT and MCX Virtus - Black

Arisaka Defense MCX Zero Retention Clamp, Fits Sig Sauer MCX, LT Standard Handguard, Anodized Finish, Black ZRC-SPEAR-LT

The Arisaka Defense MCX Zero Retention Clamp (ZRC) is a precision-engineered accessory designed to enhance the stability of laser and iron sight zeroing on your rifle. Specifically compatible with the Spear LT chambered in 5.56, 7.62x39, and 300 Blackout, as well as the MCX Virtus in 5.56 and 300 Blackout calibers, this clamp addresses common issues caused by handguard movement. The handguards on these platforms often lack sufficient attachment to the upper receiver, leading to significant flexing when pressure is applied during shooting or handling. This flexing can result in zero shifts of 5 mils or more, compromising accuracy and requiring frequent re-zeroing. The ZRC system uses exterior clamps that thread into a specially designed U-bracket, which engages the extended upper receiver underneath the handguard for a secure fit. This configuration stabilizes the handguard across two axes, effectively eliminating zero shift caused by handguard movement. The U-bracket is engineered to avoid contact with the barrel or gas system, maintaining the integrity of the free-floating barrel design. The clamps are contoured for minimal interference, ensuring comfortable handling during use. Constructed from durable black material, the ZRC is built to withstand rigorous field conditions while providing a reliable solution to zero stability issues. Installing this clamp can significantly improve shooting accuracy by maintaining consistent sight alignment and reducing the need for frequent adjustments. It is an essential upgrade for shooters seeking enhanced precision and reliability in their AR platform. Whether for tactical, competitive, or recreational shooting, this part offers a straightforward upgrade that preserves the rifle’s performance and handling characteristics.

Features:

• Designed for Spear LT chambered in 5.56, 7.62x39, and 300 Blackout, and MCX Virtus in 5.56 and 300 Blackout

• Addresses handguard flex and zero shift issues caused by inadequate attachment to the upper receiver

• Utilizes exterior clamps that thread into a U-bracket for secure engagement beneath the handguard

• Stabilizes the handguard across two axes to prevent zero movement during shooting

• Maintains free-floating barrel integrity by avoiding contact with barrel or gas system

• Contoured clamps ensure minimal interference with grip and handling

• Constructed from durable black material for long-lasting performance

• Easy to install and compatible with existing AR platform configurations

Compliance Notice

This product is intended for lawful use only. Restrictions may apply based on state or local laws.