Problem:
The free float rail on my AR180B makes it unable to field strip the piston assembly. To clean the piston, I have to remove the rail or remove the gas block.
Solution:
A piston assembly that removes out the front of the gas block.
Note: The round black thing by the reciever is what the free float rail mounts too. I'm making up a new one.
Stainless steel cylinder and piston. Piston and operating rod are all one piece, so only one moving part on the entire gas system. Gas Block is 7075 aluminum. All the work is done by the stainless parts, the aluminum just holds them in place.
Cylinder engages the gas block using an interrupted thread. The piston and cylinder are fed through the gas block and then the cylinder is given a 1/4 turn to lock it in place. The cylinder cap lever (no shown) locks with a spring detent, as well as tightening down against the face of the gas block when the cylinder is turned.
I still need to do some more machining on the gas block. The bottom needs to be slotted and the clamping screw holes drilled and tapped. Some minor changes need to be done to the gas block so I'll likely make another one after the first prototype is completely finished. Then I find out if it will come shooting out the front.
Oh, and because those stupid strings threaded through a hole were pissing me off, I made a Tavor sling mount. A few will be available for sale soon. Planning to make a front one as well.
The free float rail on my AR180B makes it unable to field strip the piston assembly. To clean the piston, I have to remove the rail or remove the gas block.
Solution:
A piston assembly that removes out the front of the gas block.
Note: The round black thing by the reciever is what the free float rail mounts too. I'm making up a new one.
Stainless steel cylinder and piston. Piston and operating rod are all one piece, so only one moving part on the entire gas system. Gas Block is 7075 aluminum. All the work is done by the stainless parts, the aluminum just holds them in place.
Cylinder engages the gas block using an interrupted thread. The piston and cylinder are fed through the gas block and then the cylinder is given a 1/4 turn to lock it in place. The cylinder cap lever (no shown) locks with a spring detent, as well as tightening down against the face of the gas block when the cylinder is turned.
I still need to do some more machining on the gas block. The bottom needs to be slotted and the clamping screw holes drilled and tapped. Some minor changes need to be done to the gas block so I'll likely make another one after the first prototype is completely finished. Then I find out if it will come shooting out the front.
Oh, and because those stupid strings threaded through a hole were pissing me off, I made a Tavor sling mount. A few will be available for sale soon. Planning to make a front one as well.
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