Long Extension Tubes: Part number: ET-tube 4.... 4" ET-tube 6.... 6" ET-tube 8.... 8" ET-tube 10.... 10" ET-tube 12.... 12" ET-tube 15.... 15" Price for 4" to 8" tubes...... $30.00 Price for 10" to 15" tubes.... $35.00 (note color and size options in picture above)

SIGHT EXTENSION TUBES AND ADAPTER COLLARS This is a 2-part arrangement. The “adaptor” is first clamped onto the rifle’s muzzle, requiring a .001-.002” slip fit for proper functioning. Next, the “tube” is inserted into the front of the “adapter”, the “tube’s” index pin is then aligned into the corresponding slot in the “adaptor”. Finally, the “tube” is rotated counter-clockwise against the inside of the slot and the "adaptor" is clamped around the "tube". The "tube" has a male dovetail cut on it's top that will accept the newer Anshcultz 1900 series front sight. It is also drilled and tapped for standard front sight bases, it can also be altered to an AR-10/15 front sight base. ADAPTORS Part Number:  ET-RPA ......Bushing's to mount to RPA ladder front sight on tube ....  $25.00 Part Number: ET-ADP  -  Adapter to mount extension tube on muzzle (specify muzzle diameter)....  $40.00 (Specify color, see color chart for available colors)