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Brownells Bolt Parts

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Showing 1-12 of 50
  1. M16 5.56 Bolt Carrier Group Nitride Mp - M16 Bolt Carrier Group 5.56x45mm Nitride Mp
    Item#:
    078-102-001  
    Our Price:
    $79.99
    List Price: $89.99
    Description:
    The Brownells M16 5.56 Complete Bolt Carrier Group is designed to work easily and reliably in any AR-15 or M16 rifle chambered in 5.56x45mm, 300 AAC Blackout or .223 Remington. The Brownells M16 5.56 Complete Bolt Carrier Group is constructed with a bolt made from 9310 steel, which is finished with a heat treatment and shot peening. The carrier is fabricated from 8620 hardened steel. Each element of the bolt-carrier group is finished in a black-nitride coating. Magnetic-particle inspected material Extractor includes spring and rubber insert Includes torqued and staked gas key Functions with any cartridge based on the 5.56 NATO cartridge case The Browne Mfg: Brownells
  2. Ar-15/M16 Bolt Gas Rings - Ar-15/M16 Bolt Gas Ring, 3-Pak
    Item#:
    078-000-099  
    Our Price:
    $2.99
    Description:
    Put the zing back into the rifle you thought was past its prime. Manufactured to precise tolerances, these high quality, replacement springs help keep your AR-15 functioning properly. Great for emergency spares or for assembling a parts rifle. Available singly, or in 3-paks. Mfg: Brownells SPECS: Materials and finish at least equal to OEM parts. Chrome silicon springs indicated by (CS).
  3. M16 5.56 Bolt Carrier Group Nickel Boron Mp - M16 Bolt Carrier Group 5.56x45mm Nickel Boron Mp
    Item#:
    078-102-002  
    Our Price:
    $99.99
    List Price: $109.99
    Description:
    The Brownells M16 5.56 Complete Bolt Carrier Group is an affordable option that is built and tested to provide flawless operation in any AR-15 or M16. The Brownells M16 5.56 Complete Bolt Carrier Group features a bolt fabricated from 9310 steel that includes a heat-treated and shot-peened finish. The bolt carrier itself is built using 8620 steel, which features a hardened finish. The whole BCG is completed with a nickel-boron coating. Steel quality assured with magnetic particle inspection Features extractor with rubber insert and spring Gas-key screws are torqued and staked Designed for use with all 5.56-NATO-based cartridge cases. The Brownells M16 5 Mfg: Brownells
  4. Ar-15 Bolt Catch Mil-Spec
    Item#:
    078-101-163  
    Our Price:
    $6.99
    Description:
    Mil-spec AR-15 bolt catch precision CNC machined from investment casting.  Bolt catch features a matte black phosphate finish.  Catch is heat treated & 100% made in the USA. Mfg: Brownells
  5. 308ar Bolt Carrier Group Nitride Mp - 308ar Bolt Carrier Group 308 Win Nitride Mp
    Item#:
    078-102-004  
    Our Price:
    $129.99
    List Price: $169.99
    Description:
    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 notch Mfg: Brownells
  6. M16 6.5 Grendel Bolt Carrier Group Nitride Mp - M16 Bolt Carrier Group 6.5 Grendel Nitride Mp
    Item#:
    078-102-006  
    Our Price:
    $84.99
    List Price: $109.99
    Description:
    The Brownells 6.5 Grendel Bolt Carrier Group provides users with a caliber-specific bolt carrier assembly that ensures reliable, premium performance at an affordable price. The Brownells 6.5 Grendel Bolt Carrier Group is constructed with two separate kinds of steel. The bolt itself is fabricated from 9310, while the carrier is built using 8620 hardened steel. After machining, the bolt is completed with shot peening and heat treatment. Each bolt undergoes magnetic-particle inspection Extractor installation includes rubber insert and spring Features correct gas-key torqueing and staking Bolt finished with black-nitride coating Type 2 Bolt Bolt face Mfg: Brownells
  7. 308ar Bolt Carrier Group Nitride Mp - 308ar Bolt Carrier Group 308 Win Nickel Boron Mp
    Item#:
    078-000-392  
    Our Price:
    $159.99
    List Price: $189.99
    Description:
    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 notch Mfg: Brownells
  8. M16 5.56 Bolt Assembly Nitride Mp - M16 Bolt Assembly 5.56x45mm Nitride Mp
    Item#:
    078-102-003  
    Our Price:
    $49.99
    Description:
    The Brownells M16 5.56 Complete 9310 Bolt Assembly is built to withstand heavy-duty use in both semi-auto AR-15s and full-auto M16 rifles and features construction and testing that ensures high-quality performance. The Brownells M16 5.56 Bolt Assembly is constructed entirely from 9310 steel, which is designed to provide the elements needed to perform during rugged duty use. Material quality checked with magnetic-particle inspection Extractor includes spring and rubber insert Optimized for use with all 5.56-NATO-based cases The Brownells M16 5.56 Bolt Assembly includes bolt, gas rings, extractor and ejector installed. Mfg: Brownells
  9. M16 Mil-Spec Mp/Hpt Bolt Carrier Group - M16 Phosphate Bolt Carrier Group Mp/Hpt C158
    Item#:
    078-000-250  
    Our Price:
    $114.99
    List Price: $139.99
    Description:
  10. Ar-15/M16 Extractor Springs - Ar-15 Extractor Spring (Cs), 3-Pak
    Item#:
    078-000-104  
    Our Price:
    $5.99
    Description:
    Put the zing back into the rifle you thought was past its prime. Manufactured to precise tolerances, these high quality, replacement springs help keep your AR-15 functioning properly. Great for emergency spares or for assembling a parts rifle. Available singly, or in 3-paks. Mfg: Brownells SPECS: Materials and finish at least equal to OEM parts. Chrome silicon springs indicated by (CS).
  11. Ar-15/M16 Extractor Buffer - Extractor Buffers, 10-Pak
    Item#:
    078-000-071  
    Our Price:
    $13.99
    Description:
    Tough, dense rubber insert replaces factory buffer inside the extractor spring to prevent “extractor bounce” that can occur in rapid-fire conditions. Insert keeps the extractor from losing contact with casings and reducing faulty ejection of the spent casing. Sold in 10-paks. Mfg: Brownells SPECS: Rubber, black. .15'''' (3.8mm) long, .11'''' (2.8mm) diameter 10-paks.
  12. Ar-15/M16 Bolt Gas Rings - Ar-15/M16 Bolt Gas Ring, Each
    Item#:
    078-101-116  
    Our Price:
    $1.99
    Description:
    Put the zing back into the rifle you thought was past its prime. Manufactured to precise tolerances, these high quality, replacement springs help keep your AR-15 functioning properly. Great for emergency spares or for assembling a parts rifle. Available singly, or in 3-paks. Mfg: Brownells SPECS: Materials and finish at least equal to OEM parts. Chrome silicon springs indicated by (CS).
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