(S)keletonized(T)ube(7)inches long and 7 positions (R)ise - NO MOUNT INCLUDED

This M4 tube adapter replaces the standard buffer tube to ensure the stock folds as flat as possible! (With proper folding adapter)

Fits most M4 style stocks/braces.*

Lightweight and Rigid

• 0.50” Rise
• Integrated QD Sling Sockets
• 7” Length - LOP approximately 8-11.35 inches
• 7 positions 
• Compatible with our SM adapters, FM-SM-1913/MRKT Folding Mech & SIG folding mechanisms
• 7075 T6 Aluminum
• Type III Hardcoat Anodized

Requires a mount or folding mech to install!

*Some M4 style stocks use tension tabs designed for standard buffer tubes to remove movement. These will work on our Skeletonized Tubes however you may experience some wiggle. 

Attaching a stock to a pistol makes it an SBR and requires NFA approval. You are responsible for knowing and following your local/state/federal laws!

JMac Customs LLC is not responsible for the end users misuse  of our products.