S&S Precision Skeletonized Magazine Retention(SMR) Dust-E

[GOST]

http://soldiersystems.net/blog1/wp-content/uploads/2014/12/Dust-E-440x440.jpg

https://www.sandsprecision.com/smr-skeletonized-magazine-retention.html

https://www.sandsprecision.com/smr-dust-e.html