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i #100-004-634eN DANieL DeFeNse cOMpLeTe BOLT/cArrier GrOup See J #100-014-008eN sureFire M600 scOuT LiGHT See Brownells.com.
Heavy Duty construction stands up To Hard use
Complete bolt/carrier group is ready to drop into your ARstyle .308 rifle and run hard. Machined of 8620 steel, carrier has a durable phosphate finish and chrome lined interior. Carrier does not have serrations for a forward assist. Bolt is machined from 9310 hardened steel with an extractor of hardened S7 tool steel and a phosphate finish. Gas key has been torqued to spec and properly staked. Firing pin is machined from stainless steel. Group also includes cam pin and firing pin retaining pin. a b SPECS: Carrier - 8620 steel, chrome lined, phosphate finish, matte black. Bolt - 9310 steel, phosphate finish. Extractor - S7 tool steel, phosphate finish. Firing Pin - Stainless steel. #100-013-649EN Ar-308 Bolt/carrier Group, 3B259J99 � � � � � � � � � � � � � � � � � � � � � � � � $ 269.99
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COLT AR-15/M16 BOLT CARRIER GROUP
Complete, mil-spec bolt carrier group comes fully assembled and ready to drop into your carbine or rifle. Each component is precision machined then high pressure tested and magnetic particle inspected to meet strict quality control. Carrier has full-length shroud to trip the auto sear on full auto/burst rifles. The black Parkerized finish provides extra strength and corrosion resistance. Gas key is properly staked to prevent gas leakage that can lead to short stroking. Chrome lined carrier and gas key help resist wear from hot combustion gases and ensure smooth cycling. SPECS: Steel, matte black Parkerized finish. #160-000-390EN M16 Bolt carrier Group, 6A197K66 � � $ 209.99
Drop-in Assembly With strength & Durability Features For Dependable service
Complete, mil-spec assembly with bolt, bolt carrier, and firing pin is ready to drop into the rifle or carbine upper of your choice. Features a shotpeened bolt for increased surface strength and durability, and an extractor booster to ensure reliable cycling during rapid fire. Each assembly is magnetic particle inspection tested to ensure it’s free from imperfections that can lead to premature failures. Carrier is chrome lined for smooth cycling and resistance to wear from hot combustion gases for years of dependable service. Properly staked gas key prevents gas leakage that can lead to short stroking. parkerized group has an M16style carrier with full-length shroud for tripping auto sear, so the it may be installed in full-auto law enforcement and military rifles. chrome plated group is designed for semi-auto rifles only. a b SPECS: Steel, matte black Parkerized or chrome plated finish. Fits milspec AR-15/M16 upper receiver chambered for .223/5.56mm. Parkerized carrier may be installed in semi- or full-auto rifles. Available with a .223/5.56mm bolt or a 6.8 Remington SPC bolt. Chrome Plated carrier is rated for use in semi-auto rifles only. #100-004-634EN 223/5.56 Bolt/carrier Group, Parkerized, 8K189M00� � � � � � � � � � � � � $ 189.00 #100-010-493EN 223/5.56 Bolt/carrier Group, Chrome Plated, 8K190J00 � � � � � � � � � 205.00 Manufactured To rigorous Quality control standards; Available in 5.56mm Or 6.8mm spc
Steel bolt is shot-peened for extra surface hardness, then magnetic particle inspected (MPI) for cracks and flaws to ensure reliability and long service life. Models available for rifles chambered in 5.56mm/.223 or 6.8mm SPC. Comes completely assembled, with gas rings, extractor, and ejector installed. a b SPECS: 4340 steel, phosphate coated, matte black. 6.8mm SPC bolt installs in mil-spec AR-15/M16 carriers and requires a 6.8mm barrel and magazine for a 6.8mm SPC conversion. #100-009-950EN 5.56mm Bolt Assembly, 8K69A00 � � � $ 69.00 #100-009-951EN 6.8mm spc Bolt Assembly, 8K69F00 � � � � � � � � � � � � � � � � � � � � � � � � � � 69.00
DOUBLE STAR AR-15/M16 BOLT/CARRIER ASSEMBLY
Mil-spec Dimensions For Drop-in Fit; Mpi inspected For soundness
Complete bolt/carrier assembly comes ready to drop in your rifle—ideal as a replacement, in a custom build, or as a backup for extra insurance during competition. Machined from high-grade 8620 carbon steel to mil-spec dimensions, with hardchrome plated steel firing pin and chrome-lined, staked gas key for added durability. Carrier is notched for forward assist. Magnetic particle inspection (MPI) during manufacture ensures each component is solid and free of internal flaws. a b SPECS: 8620 steel, Parkerized, matte black. Carrier does not have provision for auto-sear trip. #100-004-911EN Ar-15 Bolt/carrier Assembly, Parkerized, 2Z121J43 � � � � � � � � � � � � � � $ 129.99
DPMS AR-STYLE .308 BOLT/CARRIER ASSEMBLIES
replaces Factory Bolt; use For Building custom sporter & varmint rifles
Steel, Teflon-coated, to eliminate bind on bearing surfaces which can prevent reliable cycling. Mil-spec bolt assembly is machined to strict tolerances for a drop-in fit and requires no gunsmithing. a b SPECS: Steel, Teflon-coated, matte black. 5.56mm/.223 bolt assembly meets mil-spec #8448510. 6.8mm bolt functions with standard AR-15/ M16 bolt carriers, cam pins and firing pins. #231-000-196EN 5.56mm/.223 Bolt Assembly, 3B41B10 � �$ 44.99 #231-000-319EN 6.8mm Bolt Assembly, 3B75Q51� � � � � 79.99
FAILZERO AR-15 BOLT/CARRIER GROUP
self-Lubricating surface Treatment provides smooth, reliable Function
Drop-in bolt and carrier group has a self-lubricating surface that eliminates the need to apply oil or grease that can attract dirt, dust, unburned powder, and carbon and lead to cycling failures. Proprietary EXO treatment produces an exceptionally hard surface that’s 40% more wear resistant than chrome plating, with an ultra-low friction coefficient. Surface is actually harder than the substrate underneath and will not peel, flake, gall, or rub off. EXO-treated bolt/carrier groups have been tested to function reliably without additional lubrication up to 50,000 rounds. Reduced friction also means less heat generated by metal-on-metal contact, so the gun runs cooler and parts last longer. Easy to clean, too—fouling brushes right off. Before treatment, parts are shot peened for surface uniformity and magnetic particle inspected to make sure there are no hidden flaws. Gas key is hardened to USGI specs, chrome lined to resist erosion, and comes already staked to the carrier. complete Bolt/carrier Group comes fully assembled and ready to drop into any mil-spec AR-15 upper receiver. Includes bolt, bolt carrier, small pin (.154") hammer, firing pin, extractor, cam pin, and gas key. Every kit is test fired for proper function before leaving the factory. Separately available carrier comes with gas key installed and staked. Bolt includes extractor, ejector, and gas rings installed. Add the firing pin of your choice a b SPECS: Heat-hardened carbon steel, EXO-treated surface, silver finish. Fits mil-spec AR-15 upper receiver. Carrier does not have provision for auto sear trip. #100-004-449EN Ar-15 Bolt/carrier Group w/ Hammer, 8B186M21 � � � � � � � � � � � � � � $ 215.00 #100-004-475EN Ar-15 Bolt, 8B82B86� � � � � � � � � � � � � � 89.99 #100-004-476EN Ar-15 Bolt carrier, 8B96A55 � � � � � � � 115.00
Complete Assembly Bolt Assembly
Factory Original components used in Lr-308 rifles
Complete AR-style .308 bolt and carrier assemblies are dropin ready for replacement of worn components in existing DPMS LR-308 rifles or for a new custom build. Both components are machined from heat-treated 8620 steel, with a matte black Parkerized finish. Bolt comes fully assembled with firing pin, cam pin, firing pin retaining pin, ejector, extractor, and gas rings installed. Available alone or in a complete bolt-plus-carrier assembly; carrier comes with gas key installed and staked. a b SPECS: Bolt/Carrier – 8620 heat-treated carbon steel, Parkerized, matte black finish. Fits DPMS LR-308 upper receivers and clones. #231-000-265EN Ar-308 Bolt/carrier Assembly, Parkerized, 3B231N13� � � � � � � � � � � � � � � $ 249.99 #231-000-283EN Ar-308 Bolt Assembly, Only, 1C89A99 � � � � � � � � � � � � � � � � � � � � � � � 99.99
#100-009-948EN 6.8 spc Bolt/carrier Group, Parkerized, 8K178I13 � � � � � � � � � � � � � � 189.00
JP ENTERPRISES AR-15 STAINLESS STEEL BOLT CARRIER
Burnished & Hand polished For smooth, reliable Operation
Custom, stainless steel bolt carrier features a 100% increase in bearing surface for smooth cycling and outstanding reliability. Includes forward assist serration and dust cover notch for tactical duty or any application requiring absolute “no-fail” operation. Expanded, exterior, bearing surfaces are hand polished and ensure precise alignment in upper receiver for less wear. Non-plated carrier bore is roller burnished for lowdrag movement. Rear of carrier is designed in the AR-15, semi-auto configuration with longer, mil-spec cocking pad in the front. Fivestep QPQ process produces an exceptionally hard, wear-resistant high-lubricity black finish. Comes with steel gas key installed. a b SPECS: 416 stainless steel, polished, black QPQ finish. Includes steel key. 9 oz. (255g). #452-000-022EN JpBc-2 stainless steel Bolt carrier, 2E201K48 � � � � � � � � � � � � � � � � � � � � � � � � $ 214.99
High-performance, B/c Groups in choice Of Full- Or Low-Mass configuration
JPBC-2A Full Mass Precision-machined, stainless bolt-and-carrier group features JP’s enhanced bolt made of high-grade 9310 steel for a significantly longer JPBC-3A Low Mass life expectancy than standard mil-spec bolts. Set is available with choice of a JpBc-3A Low Mass carrier that reduces felt recoil and increases bolt JPBC-3SPA speed slightly for enhanced Polished Low-Mass rapid fire handling, or with a standard JpBc-2A Full Mass carrier that replicates the normal carrier weight and is preferred for duty rifles or any time absolute reliability is required. Standard weight carrier features a 100% increase in bearing surface for smoother cycling and reduced wear on the inside of the receiver. Both carriers feature JP’s super-hard QPQ finish for maximum wear resistance and minimal friction. JpBc-3spA Low Mass carrier has a bright, polished, natural silver finish. a b SPECS: Bolt – 9310 steel, in the white. Fits 5.56mm/.223, 300 AAC Blackout, and other .223-based cartridges. Carrier – 416 stainless, natural polished or QPQ coated, matte black. Extractor firing pin, cam pin, and firing pin retainer included. #452-000-130EN JpBc-2A Full-Mass B&c, 2E317I14 � � �$ 351.99 #452-000-131KT JpBc-3A Low-Mass B&c, 2E314D07 � � 335.99 #452-000-158EN JpBc-3spA polished Low Mass Bolt & carrier, 2E314B07 � � � � � � � � � � � � � � � � 335.99 452-000-173EN JpBc-2A-6.5G Full-Mass 6.5 Grendel B&c, 2E330G00 � � � � � � � � � � � � � � � � � � � 351.99
6.5 GreNDeL BOLT/cArrier seTs - Brings the same superb fit, function, and reliability of JP’s 5.56 bolt/carrier sets to AR-15s chambered for the versatile 6.5 Grendel cartridge. 452-000-173EN JpBc-2A-6.5G Full-Mass 6.5 Grendel B&c, 2E330G00 � � � � � � � � � � � � � � � � � � �$ 351.99
JP ENTERPRISES AR-STYLE .308 JPBC-4 LOW-MASS BOLT/CARRIER ASSEMBLY
Helps reduce Felt recoil On Large-caliber Ar platform rifles
JPBC-4BA QPQ
Reduced-weight bolt/carrier assembly helps tame felt recoil on an ArmaLite®, DPMS, or Remington AR-style .308 JPBC-4SPA Polished rifle. Carrier features the same type of weight-reducing cuts found on the original JPBC-3 AR-15 bolt carrier to give the same benefits your .308. Wide carrier rails have extra bearing surface to improve bolt alignment and reduce wear. Forward assist serrations have been omitted for competition use and further weight reduction. Comes with a complete JP EnhancedBolt™ (also available separately), designed to stand up to high-heat, high-impact use. Carrier key is already installed and staked. a b SPECS: Carrier - 416 stainless steel, with bright polished finish or black QPQ finish. Bolt – 9310 nickel-chromium-molybdenum steel. Fits DPMS LR-308 and Remington R-25 rifles. May also be used in ArmaLite® AR-10® or Rock River Arms rifles ONLy as a complete assembly. #452-000-128EN JpBc-4BA Low-Mass Bolt/carrier, QPQ, 2E397J04 � � � � � � � � � � � � � � � � � � $ 423.99 #452-000-159EN JpBc-4spA Low Mass Bolt/carrier, Polished, 2E397L04 � � � � � � � � � � � � � � � 423.99 #452-000-172EN JpBc-4 Low Mass carrier Only, QPQ, 2E231L43� � � � � � � � � � � � � � � � � � � 256.99
