Liberty Precision Machine Eclipse Flash Hider Features The Liberty Precision Machine Eclipse flash hider is purpose built for shooters running a 14.5 inch .30 caliber barrel who need to reach the legally required 16.1 inch overall length for a rifle configuration. At 2.25 inches of total length and a 1/2x28 thread pitch the device threads on and once pinned and welded becomes a permanent part of the barrel for ATF compliance. All critical alignment features are machined in a single setup on the manufacturer s equipment which keeps the bore and device concentric for consistent accuracy rather than relying on a separate alignment step. A 13/16 inch rear hex makes installation and removal straightforward with common tools. Built from 17-4 PH stainless steel and heat treated to the H900 condition the Eclipse delivers substantial flash reduction over a standard factory muzzle device while serving as a sacrificial blast baffle that protects the barrel s crown from erosion. Its square shoulder and 360 degree port orientation require no shims during installation simplifying the pin and weld process for gunsmiths. The device is also compatible with common .900 inch by 24 silencer mounting systems including the Q Plan-B and Rearden Manufacturing Atlas giving owners a path to add a quick detach suppressor mount down the road. At 2.7 ounces and compatible with 3/32 inch pins this flash hider is available for sale at GrabAGun. Liberty Precision Machine Eclipse Flash Hider Specifications Manufacturer: Liberty Precision Machine Model: Eclipse Type: Flash Hider Caliber: .30 Caliber Color: Black Material: 17-4 PH Stainless Steel Finish: Nitride Length: 2.25 Thread Pitch: 1/2x28 Compatible Hosts: Q Plan-B Rearden Atlas .900-24 Mounts Weight: 2.7 oz Available At: GrabAGun