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The extra piece IIRC is for the buttstock (fixed and telestock) it's the piece that is attached to the stock, the sling attaches to it. It allows the sling to be 'longer' for a 'cross chest' kinda carry. It's covered in the -23&P (go to the home page and head to the downloads section). Unit & Direct Support Maintenance Manual - Chapter 4 (Aux equipment). ETA: See pages 4-6 & 4-7 on how to attach it & the sling. |
It's the military's 'Top Sling Adaptor' kit. It allows the use of the standard 'silent sling' as a 'tactical sling' similar to how the IDF carries it's rifles. It allows you to carry the rifle horizontally (ready to use) with the strap running over your shoulder.
It makes installation of the front sling clamp easier. I installed one on my wife's carbine and I didn't bother to remove the handguards. |
This is better. Sure it will scratch up the parkerization - but I've gotten my FSB so hot at a match it melted the paracord (that barrel still has a bit of melted paracord on it). |
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me begining to think this was a stupid idea.