Grunt Loop (Fits M-4 Collapsible Stock)

David Tubb's Grunt Loop is a single point sling attachment designed to clamp around any mil-spec castle nut on collapsible stocks. It's design allows easy installation without need to remove a staked on castle nut. Just slide it over and tighten it down. The hole on the grunt loop accomodates different styles of single point slings.

 

 

 

 

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