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JMac Customs ST-6 Skeletonized Tube w/ 1913 Folder

Buffer Tube

Out of stock


JMac Customs ST-6 Skeletonized Tube w/ 1913 Folder

$238.41

This M4 tube adapter replaces the standard buffer tube to ensure the stock folds as flat as possible!



Skeletonized Tube:

  • Integrated QD Sling Sockers
  • 6” Length
  • 6 positions 
  • Compatible with SIG folding mechanisms
  • 7075 T6 Aluminum
  • Type III Hardcoat Anodized
  • Fits most M4 style stocks/braces 
  • Lightweight and Rigid
  • Weight: 7.57 oz w/ 1913 Folder


1913 Folding Mechanism:

  • Clamps on any "1913" or "Picatiny" Rail
  • Works with all of our ArmBar, Skeleton Stocks and Skeleton Tubes
  • Works with SIG MPX/MCX folding braces/stocks
  • Folds Left or Right
  • Has 2 height adjustments
  • 4140 HT
  • Black Nitdride    
  • Torque spec: 20 in/lb.
  • Adds approx .5" to stock/brace length
  • Allows your stock/brace to lock in the folded position
More Information
SKU ST-6+FM-SM-1913
Product Type Buffer Tube
Manufacturer JMAC Customs
Color Black
Mount Picatinny

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