Lantac Stingray 1/2 x 28 Stainless Non-Linear Compensator - Lantac's Stingray Non-Linear Compensator handles gas flow differently to standard Linear Compensators. The STG556C features a series of porting channels that run both parallel and vertical with and to the bore. The parallel channels also feature a series of gas expansion chambers along their length. Gas entering the NLC (Non-Linear Compensator) impinges against the vertical ports and expansion chambers, causing a braking action within the device. This is without any concussive energy being generated externally (as in a brake). This braking action reduces felt recoil and directs energy forwards, down range. The vertical and parallel channels are also threaded creating an uneven surface within the device that assists in disrupting gas flow and reducing flash signature. This is called Disruptive Venting. FEATURES: Two patented Trefoil shaped ports are positioned on the top of the Stingray and gas is specifically channeled to them so that they vent vertically, and control muzzle rise in a similar way to the ports on the DGN556B Dragon Muzzle Brake. The patented Trefoil pattern creates three prongs that sit within the porting area and assist in disrupting gas flow. The STG556C Stingray can be fitted partially under a handguard (as long as the vertical ports are left clear) creating an extremely compact system with excellent recoil & muzzle control features. The Stingray's outer collar is interference press fit to the main body and features a set screw fixing for additional security. Material: 4140 Ordnance Grade Stainless Steel Length: 2in Weight: 5.75oz Threads: 1/2 x 28 Cailber Group: 22 Caliber / 5.56mm Caliber / 223 Caliber Muzzle Brake Style: Straight / Angled Port Made in America