12" Sihpon AGP Midlength Barrel

12.0″ Premium Stainless Steel+ (Siphon AGP) w/ Nickel Boron (MidLength Length Barrel)


These Barrels are Truly Amazing!

Our 12.0″ (PATENTED US PAT NO. 10,274,273) “SOT Siphon AGP” “Rearward” Angled Gas Port, (MidLength) Nitride Premium Barrels are Precision made using 416-R Premium Stainless Steel 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)

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These Barrels are Truly Amazing!

Our Rearward 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)


  • “SOT Siphon AGP”  “Rearward” Angled Gas Port (PATENTED US PAT NO. 10,274,273)
  • Nitride Premium 12.0″ MidLength Barrel
  • Reduced Recoil impulse over any other barrel in it’s class
  • Improved Gas Flow
  • 5.56 NATO Chamber
  • +11 Degree Target Crown
  • 416-R Premium Stainless Steel
  • .750 Gas Block Seat*
  • Nickel Boron M4 Barrel Extension
  • Premium Nitride Treatment Inside and Out
  • Mid Length Gas System
  • 1:8 Twist Rate
  • Muzzle 1/2×28 Thread Pitch
  • Barrel Weight (1LB 4oz)
  • Custom SOT Siphon Medium Profile

**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.


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