The Gladius™ offers a two-piece muzzle system that features "sound forwarding" which makes shooting this rifle much more pleasant.


The Gladius™ has a 16 inch, 416-R stainless steel fluted bull barrel chambered in .223 Wylde, with a 1:8 twist rate. This barrel comes with a 25,000 round 1-inch MOA guarantee. It features a low-profile .750 carbine-length gas system. The barrel is matched with a Nickel-Boron, Teflon-coated Bolt Carrier Group (BCG). This provides a high level of heat, cold and chemical resistance. It also provides the well known non-stick characteristics of Teflon, allowing it to stay cleaner and cooler.

We’ve combined that with a Rise 140 Trigger system. The 140 is a single-stage (flat or curved) trigger that has a standard 3.5 pound pull, with a noticeably short reset. The Gladius features a cross-bolt safety, which is very easy to use for righties and lefties, with no need to let go of the grip. It features a low-profile hex pattern ultralight free-floating heat shield manufactured from 6061 aluminum. Although it is very light, it is extremely robust. Less weight gives you a better balanced gun.

The muzzle break is a two-piece muzzle system that features “sound-forwarding”. It makes shooting this rifle much more pleasant. The buffer system features the “silent” buffer. It’s an all-in-one H2 buffer system that is noticeably quieter than standard, and far less prone to spring failure. The Gladius™ comes standard with the Hogue over-molded grip and the Fab Defense GL-Core S buttstock. The upper and lower receivers are manufactured from 7075-T6 aluminum. The upper, lower and heat shield are class 2 black anodized. The upper features no forward assist for a much cleaner look. We both know you never used it anyway.



  • Upper, lower and handguard are black anodized

  • Muzzle break with 13/16-16 threaded 2 ¼ inch sound-forwarder sleeve

  • 16” fluted, threaded, stainless steel .223 Wylde barrel with 25,000 round 1-inch MOA guarantee at 100 yards

  • 15” Ultra slim Hive M-Lok Gen 3 Cut Away free float 6061 Aluminum handguard, 15.36 oz, with ultra-rigid design

  • Nickle Boron BCG with black teflon topcoat, including bolt, extractor, bolt carrier, gas key, cam pin and firing pin all nickle boron treated

  • H2 smooth harmonic silent buffer system with recoil reduction

  • Rise Armament Rave 140 single-stage trigger with 3.5 pound pull

  • Cross-bolt, push-button ambidextrous safety
  • Lower is machined from 7075-T6 Aluminum with precision broached magazine well that accepts all Mil-Spec components with threaded takedown pin detent hole
  • Upper is machined from 7075-T6 aluminum with no forward assist
  • Hogue Monogrip

  • F.A.B. Defense GL-Core S buttstock


  • Includes one, 30-round aluminum magazine

  • Includes Big Stick Rifles™ padded gun case

  • Includes one bottle of Shooter Lube gun oil

Available Upgrades

  • UTG contoured pistol grip $25
  • Adaptive Tactical EX Performance adjustable buttstock $25
  • Stainless Steel lower parts $100


Watch the Greyfyre™ / the Gladius™ in action.
Big Stick Rifles™ owner Ryq Farnow with a great video walk
through of the Gladius™ and the Greyfyre™ Rifles.
Want to see more? Watch this short
Greyfyre™ and Gladius™ video.