If you’re looking for Bolt Carrier Groups, you have to check these out! Designed for large-frame AR platforms, you can choose from a Low Mass Bolt Carrier or Full Mass Bolt Carrier depending on your needs, or buy one of each to swap them out whenever you want! Check out the specs and features below to pick out the perfect JPBC for your next build or to improve your current large-frame AR! JP Enterprises combines technology and cutting-edge designs to bring serious and recreational shooters high-quality firearms products at an exceptional value. Unlike most companies, JP Enterprises offers products and services based directly on the experiences of professional shooting competitors, including founder John Paul. This company actually puts its products to the test in national-level competitions. Whatever your application of choice may be, JP Enterprises has the perfect parts and accessories to improve your shooting experience. Specifications for JP Enterprises Bolt Carrier for Large Frame: Manufacturer: JP Enterprises Fabric/Material: Stainless Steel Cartridge: .308 Winchester Gun Model: AR-10 Hand: Right Condition: New Caliber: .308 Caliber Gun Frame Size: Large Features of JP Enterprises Bolt Carrier for Large Frame: Full Mass Operating System 416 stainless steel Full Mass Operating System (FMOS™) Extended forward assist serrations Dust cover notch Longer Mil-spec. cocking pad Roller-burnished for frictionless operation QPQ (Quench-Polish-Quench) 100% increase in bearing surface JP Low Mass Operating System Low Mass Operating System (LMOS™) Recommended only for competition & sporting use 100% increase in bearing surface Longer Mil-spec. cocking pad Package Contents: JP Enterprises Bolt Carrier for Large Frame See specific models for included accessories
JP Enterprises Bolt Carrier for Large Frame
Rated 5 out of 5 based on 1 customer rating
(6 customer reviews)
$280.25
Available on backorder
SKU: D4E55CBD
Category: JP Enterprises
6 reviews for JP Enterprises Bolt Carrier for Large Frame
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DaveK –
Went from a full mass Fail Zero NiB to this polished LMOS JP carrier and JP enhanced bolt group for a 16" mid gas 308 Proof carbon barrel with Seekins adjustable GB. Went with the standard weight JPSCS with a +1 buffer spring. Runs flawlessly with M118 and FGMM 175's and 168's. Felt recoil is noticeably improved. Very happy. Fit and finish is spot on.
kookiewarrior –
My second low mass bolt carrier from JP my first one was variable mass and held up well. Hopefully this is good too. The machine job is flawless and no scratches on the bolt itself, fits my spare High pressure 308 bolt carrier group. Wish it shipped with cam pin and retaining pin though.
Tim Dexter –
Fast shipping product is as described. Light weight very nice bolt carrier
LensWork –
The LMOS design of this bolt carrier weighs 2oz. less than the standard JP bolt carrier, and while 2oz. doesn’t seem like much, it definitely reduces the felt recoil in my .308 Winchester Aero Precision M5E1. Any time that you can reduce the reciprocating weight in a semi-automatic firearm (while maintaining reliability) the result will be less felt recoil. An added bonus of the lower weight means that on the forward stroke the muzzle will have less tendency to dip down, so you can stay on-target better resulting in faster, more accurate follow-up shots.I got the polished stainless steel finish, and it has a mirror-like finish, so it cycles smoothly and cleaning it is a breeze; just wipe it down with a soft cloth and any gunk comes right off. JP includes a small packet of oil with the bolt carrier, and using their oil, the carrier still looks new after the first few hundred rounds.Since it is a lightweight carrier, the rearward velocity of the carrier during recoil is greater than that of a standard weight carrier, so it may be necessary to adjust the weight of your buffer, or use an adjustable gas block. I use an Odin adjustable AR-10 carbine buffer with 2 tungsten weights (total weight 5.5oz.), a JP large frame carbine spring and an Aero Precision adjustable gas block (set 9 clicks down from fully open) on my Criterion 18” barrel with a rifle length gas tube and I have had zero function issues. My M5 reliably cycles everything from 130gr. – 185gr., hunting, military ball and match ammo without a single hiccup.
J.B. –
Have not had a chance to use at the range yet so I cant honestly speak about how it runs in the gun yet. Fit, finish and quality are way better than any other bolt carrier Ive used so far. Its very smooth in the reciever. Its a quality piece
firstsgt –
Fits awesome with my JP bolt and JP .308 barrel!!!