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Griffin Armament Low-Pro RIGID™ rail kits available

Posted on July 16th, 2016 by ar15news

The new Griffin Armament Low-Pro RIGID rail kits are now available! The kits include your choice of a 8.6″, 10.5″, 13.5″ or 15″ complete Griffin Low-Pro RIGID™ MLOK rail system, Griffin Primo Gas Block, Griffin Rail Shield 4-piece rail cover kit and the Wrench and Hardware to mount this kit to your weapon. If you are looking for a nice upgrade to your current rifle or looking to finish off a build, these kits are a high quality yet surprisingly low cost option. Check out the press release, pics and video below. You can purchase these kits now at

Griffin Armament Header Banner

Griffin AR15 rail kits include rail panels, gas block assemblies, and all tools and hardware needed for a turnkey rail system.

The design objective for the Griffin Low-Pro RIGID™ rails were to provide a slim, ultralight M-LOK rail, with increased rigidity over current similar market options.

Griffin Armament Low-Pro RIGID Rail Kit 3

“We had been looking at the market for a while and noticed that there were two types of rails essentially. Rails that were beefy and strong, and rails that were slim and unfortunately weaker. We wanted to combine the desirable attributes of both category products into one optimal rail system.”, Austin stated, Primary owner and Lead engineer for Griffin. He went on, “The final design resulted in 70% more rigidity than current similar market slim rails. This is important for those who need to use IR lasers as armed professionals or for hunting. There are a lot of great options now in IR laser aimer products that have solid mounting and solid bodies and we wanted to make a slim rail that provided industry leading point of aim / point of impact for those aimers.”

Griffin Armament Low-Pro RIGID Rail Kit 1

Low-Pro RIGID™ rails feature a 7075 aluminum barrel nut which can be installed with the included Griffin Armorers Wrench. The mounting is done with included shims and flat head cap screws for an ultra-flush and low profile mating to the receiver. 17-4 stainless QD flush cups are included which thread into the barrel nut through holes in the rail.  

The kits include the Griffin Primo Gas Block™, a 416R stainless .750” ID gas block which can be set screwed in place and / or pinned.

Additionally, the rail kits include the Griffin RAIL SHIELD™ panels as standard equipment. This 4 piece kit provides a 4.6” length surface for heat protection and griping. The user can choose to use the flat bottom panel or angled grip panel for enhanced recoil control.

Griffin Armament Low-Pro RIGID Rail Kit 2

Griffin Low-Pro RIGID™ rail kits: $ 259.95 – 284.95 msrp        

Available in 8.6”, 10.5”, 13.5”, and 15” lengths      

Rails weigh 5.9 -10.5oz  1.54” wide 1.35” ID

–  Low-Profile M-LOK interface
–  Internal reinforcement ribs provide increased strength to weight ratio
–  Lightweight 7075 T6 barrel nut
–  Low profile integrated 17-4 SS nitride anti-rotation QD sling swivel sockets
–  Included RAIL SHIELD™ 4 piece furniture kit.
–  416R Primo Gas Block™ kit included
–  Included QD sling swivel
–  Included Griffin Armorers Wrench
–  Included shim set, mounting hardware, and thread locker

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