5.9 AGP Barrel

300BLKOUT 5.9″ Nitride Premium+ (Siphon AGP) w/Nickel Boron (Pistol Length Barrel)

5.00 out of 5
(1 customer review)


Our 5.9″ AR15 Barrel is  Truly Amazing! (300BLKOUT) 7.62×35mm

Featuring our patented Angled Gas Port, Our Nitride Premium Barrels are Precision made using 4150 Chromoly Vanadium and Feature an +11 Degree Target Crown and  Superior Nitride Finish with Nickel Boron M4 Extension for Supreme Reliability. (Gas Block and Tube sold separately)

In stock


These Barrels are Truly Amazing!

Our Angled Gas Port accompanied with utilizing a longer gas tube, as well as a smoother gas flow with one less 90 degree turn in gas flow, “all not previously possible with any other barrel”, equates to the smoothest, lowest recoiling barrels on the market that no other barrel is able to achieve. Special Ops Tactical (PATENTED US PAT NO. 10,274,273) Super Sonic Ammunition Recommended

  • (PATENTED US PAT NO. 10,274,273)) “SOT Siphon AGP”  Angled Gas Port
  • Nitride Premium 5.9″ Pistol Length Barrel
  • Reduced Recoil over any other barrel in it’s class
  • Improved Gas Flow
  • (300BLKOUT) 7.62×35mm
  • +11 Degree Target Crown
  • MILSPEC 4150 CrMoVa
  • .936 Gas Seat*
  • Nickel Boron M4 Barrel Extension
  • Premium Nitride Treatment Inside and Out
  • PISTOL Length Gas System
  • 1:7 Twist Rate
  • Muzzle 5/8×24 Thread Pitch
  • Barrel Weight (1LB 1.5oz)
  • Custom SOT HEAVY Profile
  • Ammunition Recommend both Super Sonic & Sub Sonic

*((Gas Block and Gas Tube that are pictured are not included))

Click here to view the page for the correct gas block for our 5.9 Siphon AGP Barrel.

**(These barrels are designed to work with ((Milspec)) components and may not be compatible with some after market (PDW STOCKS) as some require more than normal gas pressure to cycle.  (For Utmost reliability and smoothness we recommend using a Milspec Buffer System with these barrels).

1 review for 300BLKOUT 5.9″ Nitride Premium+ (Siphon AGP) w/Nickel Boron (Pistol Length Barrel)

  1. 5 out of 5

    James Tacticalpontoon

    When building my personal version of the AAC Honeybadger, I searched for a barrel that would not only have the length requirements, but could also one that was up to my quality standards. The siphon style gas port was just the added benefit that I was looking for and made my selection clear! This is one innovative and high quality barrel!

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