Modern Carbine – MC6 300BLK Folding Brace Pistol – 6″



      • Mag Well: Wire EDM flared magazine well with accents.
      • Gas System: Low profile gas block, gas key with rounded leading edges ensuring positive functioning in all makes and grades of uppers and buffer tube combinations.
      • Bolt Carrier Group: Rounded cam pin rides in a fully chambered cam path. Properly staked and torqued grade 8 hex screws as per the true Mil-Spec. Carrier body OD and ID are hard turned after heat-treat to +/- .0005 inches. Bolt lugs are machined with the proper radius as per true Mil-Spec tolerances. Independent HP white proof testing exceeded over 90,000 PSI without failure. Outer diameter machined to all critical surfaces within +/- .0005 inches. QPQ Melonite Finish.
      • Charging Handle: Radian™ Ambidextrous Raptor – LT
      • Safety: Ambidextrous Radian Talon
      • Bolt Catch: Seekins™ Enhanced
      • Mag Release: Seekins Billet
      • Buffer tube: Maritime™
      • Buffer: H2 Buffer
      • Stock: SB Tactical SBA3 with Sylvan Arms Folding Adapter
      • Grip: MagPul MOE® Grip
      • Receivers: Lightweight, custom-matched billet upper and lower receivers, monolithic top rail
      • Caliber: .300BLK
      • Trigger: Timney™ Competition Trigger
      • Barrel: 6” Ballistic Advantage™ Performance series 300BLK barrel (machined from 4150 Chrome Moly Vanadium Steel and feature a Corrosion Resistant Finish and M4 Feed Ramp Extension. All barrels are HP and MPI tested)
      • Handguard: 6” low profile Modern Carbine™ monolithic free float M-LOK® handguard with proprietary barrel nut
      • Muzzle Device: SilencerCo™ ASR muzzle break
      • Weight: 5.2 lbs
      • Warranty: All Brace Built Products come with a Lifetime Warranty.
      • Disclaimer: MC6 300 BLK will not cycle in subsonics if not suppressed. We are currently working on the best solution to add this feature to this rifle. Will still cycle unsuppressed in supersonic.


Burnt Bronze Flat Dark Earth Graphite Black O.D. Green Tungsten
Sylvan Arms Law Tactical
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The MC6 300BLK Pistol is reliable, durable and has all the accents and styling you expect from a premium firearm.  The MC6 Pistol comes with a 6” Ballistic Advantage Performance Series barrel and custom billet handguard all made in the great state of Texas.  This pistol is compact with a Sylvan Arms folding adapter with SB Tactical SBA3 Pistol Brace.  The small package pistol comes with a tactical backpack for easy transport. All MC6 products are loaded with Timney Competition Triggers, ambidextrous controls and Radian charging handle.  Brace Built takes no shortcuts and every pistol and rifle comes with a LIFETIME Warranty.  Built in Texas.  Made in the USA.

  • Weight: 5.4 lb
  • Twist Rate: 1:7
  • Includes a soft case & one black Magpul™ 30 or 10 round magazine.
  • Recommended match ammunition:
  • Cerakote options for upper, lower and guard: Burnt Bronze, O.D. Green, Flat Dark Earth, Tungsten, and Graphite Black.
  • Warranty: All Brace Built Products come with a Lifetime Warranty

Additional information






Burnt Bronze, Flat Dark Earth, Graphite Black, O.D. Green, Tungsten


Sylvan Arms, Law Tactical