SureFire SOCOM556-MINI2 (Dark Earth). Based on the USSOCOM trial-winning design. 5" overall length — 1.2" shorter and 2.5 oz lighter than the RC2. Internal venting reduces back pressure, cyclic rate, and gas blowback. Eliminates first-round flash. Fast-Attach design for quick attachment and removal. Optimized for 14.5" 5.56 M4 variants; usable on shorter barrels with minimal reduction decrease. Inconel alloy and stainless steel construction. Sub-1 MOA test-fired. Full-auto rated. Made in USA. Note: If this product is reflected as in-stock it means it's either physically in-stock or allocated and available (serial number is assigned) at my distributor