Young MFG. What's the poop?

[Dano5326]

.....

[Robb Jensen]

Good stuff, used in Les Baer rifles and I think the M&P15 PC. Their carrier keys aren't staked as they use red Loc-tite and torque and claim that staking can cause more problems than staking fixes. I disagree and when I encounter them I stake them in place.

[FALbert]

PK Firearms has them in different flavors.

http://www.pkfirearms.com/store/get_items.aspx?type=0&term=52

My National Match BC assembly came properly staked.