POTD: X-Rayed Lower Recevier
by
Nicholas C
Published: April 28th, 2016
Similar to X-Ray Guns, someone took their lower receiver and X-Rayed it. However this is a polymer lower. It almost looks invisible in the X-Ray image. I am surprised at the position of the buffer retainer. Look at how far forward it is canted. Perhaps that is just a characteristic of the polymer lower or do all buffer retainers lean that far forward?
Does anyone recognize the stock? It appears to have an adjustable cheek riser. I am interested to know why there is a horizontal coil spring in the stock.
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I guess that the second coil spring is a part of a length adjustment system: When one presses the handle located under the stock, the perpendicular bolt disengages one of the recesses located under the buffer's tube. The second coil then pushes the butt plate in order to automatically extend the stock.
As one commenter noted that appears to be a FAB Defense GL Shock butt stock:
http://www.fab-defense.com/...
Shock absorbing stock is very rugged and works quite well. Also has the cheek riser built in.