The MCX-RATTLER LT offers a 6.75” cold hammer forged barrel, compatibility with AR-style triggers, an adjustable gas system for suppressor optimization, a QD Clutchlok Muzzle Device and a M4 adapter kit to convert any M4 lower to utilize the folding capability of the MCX platform. Also, the new MCX-RATTLER LT design allows it to be compatible with all MCX-SPEAR LT parts, meaning any barrel or handguard from the MCX-SPEAR LT can interchange parts, allowing for easy caliber and length conversions. Advanced beyond any platform in its class, the MCX-RATTLER LT upper is the ultimate upgrade for your MCX or M4 lower.