uscm

I'd buy the Arredondo Bolt Release before I'd buy the Nordic Components one. The Arredondo has a lot more surface area to contact.

Wish I had these directions when I did mine. It was probably the hardest part on the gun I've installed so far, and it was all down to the roll pin being a PITA to get out of the gun and the new one back in. It wasn't until I had the roll pin fully seated that the bolt release stopped interfering with the bolt carrier. My problem was that I initially had such a hard time getting the new roll pin back into the receiver that it wasn't in all the way and that allowed the bolt release plate inside the receiver to angle inwards slightly and catch on the bolt carrier as it cycled during testing. A 3/32" drill bit would definitely have helped keep the parts aligned and the pin go back in easier. Wish I had thought of that.

My range had some of this ammo which I tried out with my M4. The gun didn't consistently cycle the shells. I'm gonna stick with the Federal Flight Control.

Appears that it's doable: What I first noticed about the Urbino's grip was that it feels a little more boxy at the rear of the pistol grip when compared to the OEM grip. Don't know if that's by design or not, but I find that once I started shooting the gun a lot, the grip is actually pretty dang comfortable and the slight boxyness at the rear of the grip is giving me a bit more torsion strength when manipulating the gun, especially during reloads. Looking good, Phil! Oh yeah ... 5 posts ... so here's my Urbino installed: Gonna remove the CDM mount, move the Scout light back onto the M80 rail, and get a longer tail to keep the pressure pad in the same location.

Received my carrierComp Titanium Full Tube. The quality is outstanding, and the finish was a perfect match to the barrel. I was expecting the installation to be a lot more difficult than it actually was. After breaking down the gun, I grabbed some bicycle rubber inner tubing, slid it onto the OEM mag tube. I clamped down my heat gun to a table and turned it on at the low setting. Holding the receiver in front of the heat gun I slowly rotated the receiver in front of the heat right where the magazine tube and receiver were connected. Once the receiver was hot enough I held the receiver in one hand, the magazine tube in the other, and twisted them in opposite directions slowly. The OEM tube came off pretty painlessly. The bicycle inner tubing helped a lot with gripping the OEM tube. Kip is truly awesome to deal with.

Got mine directly from Mesa Tactical. Really liked the quality and overall feel of the piece.