The bore of the Stainless Bolt Carrier has a roller burnished finish for frictionless operation with no chance of peeling chrome as in standard Mil-Spec carriers. The exterior bearing surfaces are hand polished. Features a 100% increase in bearing surface for smoother operation and improved alignment with less wear on the upper receiver. Comes with the key installed and is milled from 416 Stainless Steel. Specifications for JP Enterprises Stainless Full Mass Tactical Carrier: Manufacturer: JP Enterprises Color: Black Finish: Black Fabric/Material: Steel Gun Make: AR Platform Gun Model: AR-15 Additional Features: with QPQ without buffer for 6.5 Grendel Bolt Material: 9310 Steel Carrier Material: 8620 Steel Features of JP Enterprises Enhanced Bolt Assembly Group: Stainless full mass tactical carrier with QPQ (without buffer) Package Contents: JP Enterprises Stainless Full Mass Tactical Carrier
Barr –
Well built, very slick, easy clean up but very pricey. Very nice addition to a very nice rifle, that being said, if you have an everyday rifle you really don't need it, if you're building a top tier rifle it's an awesome add-on.
BubbaGump –
I got this because I had a JP bolt. I got the JP bolt because it's the only bolt that Krieger Barrels will head-space their barrels to. Based on what I've seen so far, I see why. The carrier is cut differently than a stock carrier. The carrier won't let the dust cover close unless the carrier is retracted (locked back) or fully in battery. It's got way more contact area than a standard bolt carrier. The JP bolt rides in there really smoothly.
Cory –
Added yet another one to the collection. Excellent fit and finish. Like all JP products, you get what you pay for. When building a precious ar15, you don’t want to skimp on your bolt carrier group. Buy with confidence.
Merlin –
This is a very slick, easy moving bolt carrier. Great product. I have bolt carriers in 3 other AR's and this is by far the best one I have. I haven't tested it enough from a cleaning standpoint but movement is fantastic.
CHRIS URSINY –
excellent product, my brother has this in his dpms ar-15 it is smooth as silk, weapon cycles and functions a bit better than the original bolt carrier group did finish is like glass, smooth and friction-less.
Barr –
After it arrived I really didn't want to install it. Wanted to place it in a display case. SUPER NICE….WAY TO NICE… Got this for a high end precision build and works great. Not necessary in a normal build, lol, I'd be like putting racing tires on a work truck. So if you're putting a precision or competition rig together then YES I highly recommend it.