I've been a Robinson Armament (RA) XCR-L fan and owner for years. I have conversion kits for 5.56, 300 Blackout, and 7.62x39. Rifle and 7.5" bbl (braced) pistol with red dot sights. Carried the pistol slung over my back when I'd take my goat herd of my property in case a coyote or feral dog came after them. At round 3,208 of 5.56 the internal gas valve broke in two, sending other parts of the gas adjustment system to parts unknown. Since RA doesn't list the gas adjustment parts on their web site for on-line ordering, they asked me to return the bbl. In a week's time they received my bbl, rebuilt the gas adjustment system, shipped it back, and sent me an extra set of gas adjustment system parts. No charge. Said it's under warranty (it was years out of warrantee and they knew it from my owner registration). Now that's service!
FWIW, the throat of the 5.56 bbl has not advanced in 3,208 rounds. The bbl is chrome lined. You can see though the effects of such a short bbl on the linear comp, as the bullet opening is wearing away from the blast.
FWIW, the throat of the 5.56 bbl has not advanced in 3,208 rounds. The bbl is chrome lined. You can see though the effects of such a short bbl on the linear comp, as the bullet opening is wearing away from the blast.