7075, T-6, Type 3 hardcoat anodized, aluminum barrel nutĤ5 degree Picatinny QD swivel mount (pictured but not included).6061-T6, Type 3 hardcoat anodized SR-Rigid™ Rail.Multi-Function Griffin Armorers wrench included.Low profile, user friendly, clamp installation design.If you are looking for a high quality, feature rich, American made rail system for your AR15 type firearm look no further than Griffin Armament® SR-RIGID™ rails. A contiguous picatinny top rail ensures repeatable and accurate mounting for night vision and thermal systems.

M-LOK flats on each 45 degree surface allow for mounting of your favorite M-LOK accessories. Flat head T15 torx screws should be tightened to 25/in pounds. The clamp geometry in the rear section of the rail is low profile and ergonomically pleasing even for long durations of extended carry at static security positions. The new slip fit clamp design is extremely user friendly and does not require any shims or special timing methods. The barrel nut can be easily installed to 35-85 ft/lbs using the included Griffin Armorers Wrench. The new SR-RIGID™rails features a close tolerance, heavy-duty, 7075 aluminum, T-6, type 3 hard coat anodized finish. Internal practical testing showed substantial reductions in POI shift with laser aimers versus competing 'slim rails' that lacked this notable product feature. A custom extrusion provides significant internal reinforcements to reduce flex when loading the carbine on the rail. These reinforcements provide rigid mounting for IR laser aimers ensuring minimal POI shift when torque is applied to fore-grip type accessories, or when loads are applied to the rail such as practical shooting off barricades or when loading bipods for rapid follow up shots. This provides suppressor aficionados a sleek, and compact overall length to AR15 type firearms.ĭesign objectives of this rail were to provide a suppressor compatible rail, with increased rigidity and durability over similar weight and profile current market options.

Griffin Armament® M-LOK compatible SR-RIGID™ rails (Suppressor Ready - Rigid) allow up to 1.5” outside diameter silencers to be mounted inside the octagonal M-LOK rail.

10 inch quad rail 10.5 inch barrel