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BROWNELLS
308AR BOLT CARRIER GROUPS

508061123398 078102004

The Ideal Big-Bore Bolt Carrier Group

The Brownells Complete .308 Bolt Carrier Group is designed to operate reliably in DPMS LR-308 pattern rifles chambered in .308, .243, 7mm-08, .338 Federal, .260 Remington, 6.5mm Creedmoor, or any other cartridge based on the .308 Winchester. These BCGs are manufactured to the same uncompromising standards as our M16-style BCGs. Our Complete .308 Bolt Carrier Group has a bolt machined from robust 9310 steel, heat-treated and shot-peened for superb hardness. The carrier itself is fabricated from hardened 8620 steel. Both are magnetic particle inspected (MPI) to make sure there are no hidden microscopic flaws that could lead to premature failure. Carrier has forward assist notches Extractor is installed with rubber insert and spring Gas key screws are torqued and staked For use in DPMS LR-308 pattern upper receivers only; NOT compatible with Armalite rifles You can get the Brownells Complete .308 Bolt Carrier Group with a hard Black Nitride finish that is exceptionally resistant to surface wear OR a Nickel Boron coating (a dull matte silver) that’s even harder and self-lubricating to boot. Both come complete with firing pin, firing pin retaining pin, cam pin, gas rings, gas key, extractor, and ejector installed. Brownells GunTech™ Note: Unlike BCGs with a traditional Parkerized finish, the carrier on our Black Nitride bolt carrier group is not hard-chromed inside because Nitride is actually harder than industrial chrome plating.

Plus...

L'idéal Big-Bore Bolt Carrier Group

Le Brownells Complete .308 Bolt Carrier Group est conçu pour fonctionner de façon fiable dans DPMS LR-308 fusils à motifs chambrés en .308, .243, 7mm-08, .338 Fédéral, .260 Remington, 6.5mm Creedmoor, ou toute autre cartouche basée sur le .308 Winchester. Ces BCG sont fabriqués selon les mêmes normes sans compromis que nos BCG de style M16. Notre complete .308 Bolt Carrier Group a un boulon usiné à partir d'acier robuste 9310, traité à la chaleur et poché pour une dureté superbe. Le transporteur lui-même est fabriqué à partir d'acier durci 8620. Les deux sont des particules magnétiques inspectées (MPI) pour s'assurer qu'il n'y a pas de défauts microscopiques cachés qui pourraient conduire à une défaillance prématurée. Le transporteur a l'aide vers l'avant encoches Extractor est installé avec insert en caoutchouc et ressort Les vis de clé de gaz sont torqued et jalonné pour l'utilisation dans les récepteurs supérieurs de modèle de DPMS LR-308 seulement ; PAS compatible avec les fusils Armalite Vous pouvez obtenir le Brownells Complete .308 Bolt Carrier Group avec une finition hard Black Nitride qui est exceptionnellement résistant à l'usure de surface ou un revêtement Nickel Boron (un argent mat terne) qui est encore plus difficile et auto-lubrifiant à Démarrage. Les deux sont livrés avec goupille de tir, goupille de cuisson de tir, goupille de came, anneaux de gaz, clé de gaz, extracteur, et éjecteur installé. Brownells GunTech™ Note: Contrairement aux BCG avec une finition Parkerized traditionnelle, le transporteur sur notre groupe de porte-boulons Black Nitride n'est pas chromé à l'intérieur parce que Nitride est en fait plus difficile que le placage de chrome industriel.

Plus...

Évaluations client de BROWNELLS 308AR BOLT CARRIER GROUP 308 WIN NITRIDE MP

Nombre d'évaluations: 13
De brownells.com: 13
Note moyenne: 4.5

Great BCG (09.03.2018)

I bought this for my Aero Precision M5 build, and although Iâm only half way through, this bolt looks great. Thereâs no sharp corners or edges and looks very well crafted. Thanks Brownells.

<img width="500" src='/userdocs/reviewimages/a70a6c45-acb7-49ba-a10f-62d1cd91fda0.jpg' alt=''>

Impeccable quality and unbeatable price (25.03.2018)

Got this BCG the other day for my Aero M5 build. The machining on this bolt is superb. Their are no sharp edges anywhere. I have not shot this but I do have previous experience with their AR-15 M16 nitride bolt, which runs flawlessly, and will continue to do business with brownells. I know the .308 is a completely different animal when it comes to parts but the quality of their products are barnone. This will hopefully be mating up with a ballistic advantage DPMS cut barrel extension. Canât wait to get this rifle barking.

Dimensions Wrong Affecting Headspace (06.04.2018)

Actually Zero Stars - It was pretty, but on my specimen of this bolt, the individual bolt lugs measured .308" to .309" long and the bolt face recess measured .123" deep, which resulted in the bolt failing to reject a top quality NOGO gage in a well respected, high-end barrel brand. (WIN 308 headspace is 1.6300" to 1.6340", only .0040" total tolerance range and the barrel/extension combo gets part of that). I tried bolts from three other rifles in my shop and all firmly rejected the NOGO gage in this barrel. I talked with a Brownells' tech and he told me the lugs should be .312" and the recess should be .128" according to their manufacturer. My measurements showed this bolt to be way off the manufacturer dimensions. In my opinion, even if it were correct to the manufacturer's dimensions, it would likely still fail on the NOGO gage based on my experience (bolt face recess too deep). On many other AR-308 bolts and barrels used, I have found that bolt lugs measuring .312" to .313" long and bolt face recesses measuring .1245" to .1255" deep will headspace properly in good quality barrels. There is some info to support these dimensions on the web, but I could find no manufacturer dimensions. Rifle building hobbyists, BEWARE, there is no MIL SPEC for AR-308 rifles or parts, like on M4 and M16 parts used in AR-15s. Each AR-308 part maker chooses his own dimensions and tolerances. Every bolt/barrel combination should be headspaced for best quality, accuracy, and safety.

Nice Bolt but needs some TLC (11.04.2018)

I have several of these bolts and have had the same issue with both of them. Looking at the bolt face of the Extractor, the bevel on the Extractor does not line up with the diameter of the bolt recess. With the Extractor bevel not in the correct place the round is picked up and slammed into the chamber. The Extractor does not catch the edge of the shell and will not eject the shell. A simple fix is to remove the Extractor and increase the bevel so it will slip over the shell and seat it in the bolt recess. A good value BCG but not Military Spec. After the modification the bolt works without issue.

Decent for the money (17.04.2018)

I purchased the BCG for a build off an Aero Upper and Lower set.

The BCG is nice for the money, however my gas key hole was .007" undersized which resulted in the destruction of a gas tube. Fortunatly I had a reamer (.1805") for gas tubes and was able to use the reamer to bring the gas key into spec.

I chambered and headspaced the barrel to this bolt with no problems and once I get the kinks worked out I believe this rifle will be very reliable and long lasting.

Overall I am happy with the bolt due to its price point and decent quality. I believe I got a gas key that simply had a little build up of NiB in the bore causing it to be out of spec.

I spoke to tech support about this issue and they were very helpful and willing to exchange it immediately, however I want to try and make this one work due to my barrel being headspace to this bolt.

Quality product (07.05.2018)

I was having headspace problem with my new build, aero M5E1 upper, ballistic advantage barrel & a aero precision bolt, while using a forster headspace guage the bolt would not turn on the GO guage so I decided to swap the bolt for the brownell's nickle boron & it worked perfect. Ran about 150 rounds (6.5 creedmore) & it worked flawless, no jams/malfunction what so ever, only downside is when I received the bolt it was full but after polishing it was amazing.

Runs great in DPMS Pattern 308 AR (01.09.2018)

I helped a couple of buddies put together their AR-10's. They asked me to select all of the components as they had no experience building ARs. They used these BCG's. I helped them build the rifles, we took them to the range and they both performed great. They are shooting their rifles often and they are running great with this BCG,

<img width="500" src='/userdocs/reviewimages/7dc07657-2193-4233-9b16-23f952ff9bbc.jpg' alt=''>

<img width="500" src='/userdocs/reviewimages/894c1586-1f6a-4196-9e1e-f230da788219.jpg' alt=''>

Awesome (20.06.2017)

This bolt is made of the same high quality material as other more expensive ones. Fit and finish are top notch. Headspaced to my Ballistic Advantage 6.5 Creedmoor barrel perfectly. Haven't shot it yet, but the first impressions are phenominal.

Excellent! (09.09.2017)

The nitride finish is perfect. Functions flawlessly in my 6.5 Creedmoor with Ballistic Advantage barrel. Forward Assist serrations are on this bolt carrier and work as expected.

Great product. Thanks Pete.

Awesome, must have (17.12.2017)

This carrier is made so well, the machining and finish are perfect, smooth, slick, no machining/ tool marks, no burrs. No sharp edges, fits perfect

I'm super impressed, and I'm a machinist, I haven't seen any others better than this in any way

Go brownells!!!!!!!!!

Runs great (02.01.2018)

Runs flawlessly in my PSA10 gen 2. Itâs runs smooother than the original bolt Carr group.

Fine Looking BCG (28.07.2018)

Good Looking BCG, packaged good and shipped quick, I was glad to see a JP style firing pin retaining pin on this BCG, GOOD Value on the sale price...

Awesome 308 BCG (11.09.2018)

Wow! Just wow! Purchased for use in an Aero Precision M5 build. Finish is flawless. Cycle smoothly. Every bit as nice as a genuine Aer BCG, but at a much better price. Don't think twice, just buy it.

Lire 13 plus d'avis sur brownells.com

314.9 314.9 1 CHF

Référence: 078102004
BROWNELLS 308AR BOLT CARRIER GROUP 308 WIN NITRIDE MP
Ref Fabricant: AZT-A10-308-ST- 508061123398 Le Brownells Complete .308 Bolt Carrier Group est conçu pour fonctionner de façon fiable dans DPMS LR-308 fusils à motifs chambrés en .308, .243, 7mm-08, .338 Fédéral, .260 Remington, 6.5mm Creedmoor, ou toute autre cartouche basée sur le .308 Winchester. Ces BCG sont fabriqués selon les mêmes normes sans compromis que nos BCG de style M16. Notre complete .308 Bolt Carrier Group a un boulon usiné à partir d'acier robuste 9310, traité à la chaleur et poché pour une dureté superbe. Le transporteur lui-même est fabriqué à partir d'acier durci 8620. Les deux sont des particules magnétiques inspectées (MPI) pour s'assurer qu'il n'y a pas de défauts microscopiques cachés qui pourraient conduire à une défaillance prématurée. Le transporteur a l'aide vers l'avant encoches Extractor est installé avec insert en caoutchouc et ressort Les vis de clé de gaz sont torqued et jalonné pour l'utilisation dans les récepteurs supérieurs de modèle de DPMS LR-308 seulement ; PAS compatible avec les fusils Armalite Vous pouvez obtenir le Brownells Complete .308 Bolt Carrier Group avec une finition hard Black Nitride qui est exceptionnellement résistant à l'usure de surface ou un revêtement Nickel Boron (un argent mat terne) qui est encore plus difficile et auto-lubrifiant à Démarrage. Les deux sont livrés avec goupille de tir, goupille de cuisson de tir, goupille de came, anneaux de gaz, clé de gaz, extracteur, et éjecteur installé. Brownells GunTech™ Note: Contrairement aux BCG avec une finition Parkerized traditionnelle, le transporteur sur notre groupe de porte-boulons Black Nitride n'est pas chromé à l'intérieur parce que Nitride est en fait plus difficile que le placage de chrome industriel.

314.9 CHF 229 CHF 314.90 *

Délai de livraison environ 8-15 jours depuis l'entrepôt des États-Unis.

Caractéristiques: Calibre: 308 Winchester Finition: Black Nitride Manufacture: AR .308

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Caractéristiques

Calibre: 308 Winchester Finition: Black Nitride Manufacture: AR .308 Poids du colis: 0.558kg Hauteur d'expédition: 51mm Largeur d'expédition: 102mm Longueur d'expédition: 279mm

Détails de l'article

Fabriqué au USA
US export classification: 0A501.c

The Ideal Big-Bore Bolt Carrier Group

Plus...

L'idéal Big-Bore Bolt Carrier Group

Plus...

Évaluations client de BROWNELLS 308AR BOLT CARRIER GROUP 308 WIN NITRIDE MP

Nombre d'évaluations: 13
De brownells.com: 13
Note moyenne: 4.5

Great BCG (09.03.2018)

Impeccable quality and unbeatable price (25.03.2018)

Dimensions Wrong Affecting Headspace (06.04.2018)

Nice Bolt but needs some TLC (11.04.2018)

Decent for the money (17.04.2018)

Quality product (07.05.2018)

Runs great in DPMS Pattern 308 AR (01.09.2018)

Awesome (20.06.2017)

Excellent! (09.09.2017)

Awesome, must have (17.12.2017)

Runs great (02.01.2018)

Runs flawlessly in my PSA10 gen 2. Itâs runs smooother than the original bolt Carr group.

Fine Looking BCG (28.07.2018)

Good Looking BCG, packaged good and shipped quick, I was glad to see a JP style firing pin retaining pin on this BCG, GOOD Value on the sale price...

Awesome 308 BCG (11.09.2018)

Wow! Just wow! Purchased for use in an Aero Precision M5 build. Finish is flawless. Cycle smoothly. Every bit as nice as a genuine Aer BCG, but at a much better price. Don't think twice, just buy it.

Lire 13 plus d'avis sur brownells.com

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