In light of the 224 Valkyrie (supersonic velocities at 1,200+ yards) I had to repost this video of the BEST BCG... https://t.co/8vi5WtvpvQ
A Nickel Boron coated Gas Key
This EXO Nickel Boron coated gas key is hardened to USGI specs and provides a permanently lubricious surface for extreme durability and increased wear and corrosion resistance.
Note: Comes with two (2) grade 8 hardened fastners.
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