Kudo’s to Brownells for increasing their footprint in the 308AR/AR-10 arena. We were pleased to see Brownells is offering a Brownells Branded 308AR Bolt Carrier Group available in phosphate and black nitride.
The Brownells 308 AR Bolt Carrier Groups come completely assembled and inspected, ready for use in your next 308AR build. Bolt is machined from Vac Arc Premium 9310 Carburizing Steel, providing a high core hardness and high fatigue strength. Bolt is also Magnetic Particle Inspected and shot peened. Extractor is machined from S7 Tool Steel for extended life. Carrier is machined from 8620 steel and properly heat treated. Gas key is machined from 4140 steel and properly staked. Bolt Carrier Groups are available in the standard, mil-spec Phosphate with a Chrome interior, or with a Black Nitride Finish. These 308AR BCGs, are Made in the USA.
SPECS: Fits – DPMS pattern 308 rifles. Materials – Vac Arc 9310 Steel Bolt. 8620 Steel Carrier. S7 Tool Steel Extractor. 4140 Gas Key. 4340 Cam Pin. Bolt are magnetic particle inspected and shot peened.
Brownells is running a special on the Magpul PRS stock with the parts needed to complete the buttstock installation on your 308AR build. All three colors are in stock. Click here for ordering information.
The 308 AR PRS Buttstock Kit includes the following items:
Buttstock extension tube
308 buttstock buffer spring
308 buffer body assembly
308 AR PRS Buttstock Kit Flat Dark Earth
308 AR PRS Buttstock Kit – Solid construction with an adjustable length of pull and cheekpiece height make this stock an excellent option for varmint and long-range target rifles. The 28 oz weight adds heft and balance to heavy-barreled rifles. Requires standard rifle-length A2 buffer, receiver extension buffer tube, and spring (not included). Includes mounting hardware and 2 ambidextrous sling loops. When compared to the standard A2 stock, the MagPul PRS length of pull adjustment goes from .25″ shorter than the A2 to .75″ longer than the A2.
Fully adjustable stock and comb for .308 AR rifles readily adapts length of pull and comb height with two click-detent adjustment wheels. Rubber buttpad seats securely onto your shoulder and won’t slip during sustained shooting exercises. Fully-raised comb will not get in the way of charging handle operation. Removable base cover conceals an accessory rail to provide a mounting platform for a monopod. Removable sling loops can be mounted on either side of stock to accommodate your preferred carry position.
308 AR PRS Buttstock Kit ODG
SPECS: Molded polymer, Black, Dark Earth, or O.D. Green. Comb height can be raised 1″ (2.5cm). 1 lb. 12 oz. (.79kg) wt.
Simply put the MBA MODULAR BUTTSTOCK ASSEMBLY from Luth-AR is a skeletonized lighter weight alternative the the Magpul PRS. The specs around the internet are confusing. The MBA MODULAR BUTTSTOCK ASSEMBLY from Luth-AR weighs in at 1.25 pounds while the Magpul PRS comes in at 1.68 pounds. It will be interesting to see how Magpul responds to the Luth-AR line of stocks.
MBA MODULAR BUTTSTOCK ASSEMBLY Luth-AR – When it comes to custom stocks for the AR15, 308AR, AR-10 options are pretty much wide open. You can add on a collapsible stock that will allow you to fit the rifle to shooters of different sizes (or different clothing configurations based on location and temperature), there are options for fixed stocks, and there are even stocks that are adjustable for precision shooting. There are even devices that allow you to fold the stock on your gas-impingement-driven AR15.
In this last group, options are less-plentiful than in the collapsible arena. A handful of manufacturers make fully-adjustable buttstocks for the AR15, 308AR, AR-10, so when there was a new player in town, it piqued our interest here at HQ. Luth-AR is a new company started by the founder of DPMS Arms, and the Modular Buttstock Assembly (MBA) is one of its first products.
The unit is solid, with adjustments made without tools using a simple thumbscrew and captured-nut. The stock can be set up for shooters of either hand, with the default set for right-handed shooters. It installs like any fixed stock and cannot be used on collapsible stock assemblies.
Two features set the MBA apart from competitors. The first is the weight—the MBA tips the scales at a featherweight 1.26 pounds. Shooters looking to save some weight on their precision rifle might be interested in the MBA. The second, more surprising feature is the MSRP of $139.95 available directly from Luth-AR and Brownells.
Glass-filled nylon rifle stocks fit onto standard A1/A2 buffer tubes and add adjustments and extra features to AR-15 rifles, including most .308 models. Stocks feature textured rubber recoil pads and 2 QD sling sockets for fast sling mounting and dismounting. Modular Stock gives an adjustable cheek rest, and adjustable length of pull. Weighs less compared to other adjustable stocks. Skeleton Stock has futuristic appearance, and helps reduce weight. Will not fit on carbine buffer tubes. Includes Allen wrench for mounting. Uncle Mike’s QD Sockets (593-000-038) can be epoxied into socket on the side of each stock.
Fully adjustable: extra 1″ height on cheek rest, additional 1 1/16″ length of pull with extended length buttplate
Approximately half the weight of competitors’ adjustable stocks The “MBA” weighs just 1.26 lbs.
Fulton Armory FAR 308AR Lower Parts Kit Without Trigger
Fulton Armory – FAR 308AR Lower Parts Kit Without Trigger
Back in 2008 or so there were far less manufacturers of 308AR parts and with the most anti-gun President in history there was suddenly a shortage of parts. Items like RIFE BARRELS, BOLT CARRIER GROUPS and LOWER PARTS KIT‘s. Fulton Armory was like my personal secret stash of gun parts.
308 AR AR-10 Bolt Catch Pin – The bolt catch pin, one of the smallest parts on the AR 308, AR-10 and AR-15 platform weapons is a part that can stop an AR-10 308AR build dead in it’s tracks if you didn’t purchase the correct one or the correct LOWER PARTS KIT for your STRIPPED LOWER RECEIVER. Here’s why. The AR-15 platform uses a roll pin and that’s taken for granted when shooters move up to the AR-10 and 308 AR platforms. Unfortunately this is where the topic gets muddy.
Armalite AR-10 rifles use a traditional roll pin setup in the AR-10 lower receiver so their Lower Parts Kits obviously include the pin. If you use an AR-10 LPK on your non Armalite 308 AR you will need to order the threaded “Bolt Catch Screw” seen elsewhere on this page. I typically keep the Armalite LPK’s on hand as well as a few of the bolt catch screws.
Armalite AR-10 and AR-15 EL0220 Bolt Catch Roll Pin
The Armalite AR-10 utilizes this roll pin, Armalite part number EL0220 which is the same as their M-15/AR15 rifles. Alternatively DPMS LR-308 based weapon utilize a proprietary hybrid pin/screw (mentioned above).
The DPMS 308 Bolt Catch Screw is essentially set screw who’s threads have been removed from one end creating a hybrid screw type pin. Now unfortunately though not all DPMS LR-308 platform based LOWER RECEIVERS utilize the hybrid BOLT CATCH PIN. Some manufacturers utilize the roll pin method identical to the Armalite AR-10.
The process of installing the Bolt Catch Pin is probably one of the most difficult tasks for the inexperienced to perform. Not done properly it’s easy to damage the finish of your lower or worse, break something. Fortunately a little grease, a roll of masking tape and some special roll pin punch make it easy. Visit our AR-10, 308 AR Roll Pin Tools Page.
