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Mil Spec Buffer Tubes

Best Sellers
  1. Ar-15/M16 Buffer Tubes - Mil-Spec Receiver Extension Tube
    Item#:
    100-004-978  
    Our Price:
    $34.99
    Description:
    For M4-Style Buttstocks; Gives 6-Position Adjustment
  2. Ar-15/M16 Mil-Spec Buffer Tube
    Item#:
    080-001-046  
    Our Price:
    $25.99
    Description:
    Rugged, Six Position Tube For M4 Type Stocks
  3. Ar-15/M16 Mil-Spec Buffer Tube - Mil-Spec 6 Position Carbine Stock Tube
    Item#:
    231-000-243  
    Our Price:
    $32.99
    Description:
    Mfg: Dpms
  4. Ar-15/M16 Mil-Spec Buffer Tube - Mil-Spec Receiver Extension Tube
    Item#:
    100-004-252  
    Our Price:
    $29.32
    List Price: $44.99
    Description:
    Replacement receiver extension tube is the correct length and 1.146" outside diameter for proper fit of a mil-spec carbine adjustable buttstock. Replace a worn out USGI tube, or convert a commercial carbine or fixed-stock rifle to accept an adjustable buttstock that requires the smaller, mil-spec tube. Six precision-machined notches on the underside grasp the stock’s locking pin securely to ensure fast, positive stock length adjustments without slippage. One-piece aluminum construction with a tough, abrasion-resistant matte black hardcoat anodized finish. Rifle conversion also requires a carbine action spring and buffer, available separately. Mfg: High Standard SPECS: Aluminum, hardcoat anodized, matte black. 7¼” (18.2cm) long, 1.146” O.D.
  5. Ar-15/M16 Mil-Spec Buffer Tube Assembly - Ar-15/M16/M4 Stock Hardwear Mounting Kit, Mil-Spec
    Item#:
    100-014-185  
    Our Price:
    $57.99
    Description:
    Compatible with Mil-Spec stocks, this kit contains all the necessary parts to mount a stock assembly onto your lower receiver. Six position buffer tube is machined from 7075 T6 aluminum to Mil-Spec dimensions with a Type III hardcoat anodized finish. Machined, high carbon steel castle nut is heat treated for extra strength and given a phosphate finish for durability. Kit also contains a standard 3 oz. carbine buffer and a carbine action spring made of high-tensile steel. Mfg: Bravo Company SPECS: Buffer Tube - 7075-T6 aluminum, hard coat anodized Type III finish. Carbine Buffer - 3 oz. (85g) wt. Castle Nut - Steel. Carbine Spring - High-tensile steel.
  6. Ar-15/M16 Mil-Spec Buffer Tube Assembly - M4 Mil-Spec Buffer Tube Assembly
    Item#:
    080-001-039  
    Our Price:
    $49.99
    Description:
    Features: Six position AR15/M16/M4 receiver extension assembly Includes Mil-Spec receiver extension/buffer tube, receiver lock plate, lock-nut/castle nut, carbine buffer and carbine buffer spring Buffer tube is Mil-Spec diameter and 6061 aluminum Carbine buffer weight is 3 oz Buffer spring is 17-7 stainless steel Mfg: Brownells Fits standard AR15/M16 lower receivers. Mil-spec diameter. Includes buffer tube, lock plate, castle nut, buffer and buffer spring.

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Buttstock Extension Tube Assembly

Related Items
  1. Ar-16/M16 Buffer Tube Assembly - Ar Extension Tub Kit - Commercial
    Item#:
    100-010-862  
    Our Price:
    $52.99
    Description:
    All-in-one kit lets you quickly mount an M4-style receiver extension to accept the adjustable buttstock of your choice. Extruded aluminum buffer tube comes with carbine buffer, buffer spring, castle nut, and end plate sling adapter. Features six positions for stock length adjustment and unique "no bind" sling attachment that gives 180 degrees of motion. Mil Spec and Commercial models available. Mfg: Tapco Weapons Accessories Extruded 7075 T6 aluminum, matte black finish. Incudes carbine buffer, spring, castle nut, and sling plate adapter. Mil-Spec- 7 1/4" (18cm) long. 1.14" (2.8cm) O.D. Commercial-7 3/4" (19cm) long. 1.17" (2.9cm) O.D.
  2. Ar-16/M16 Buffer Tube Assembly - Ar Extension Tub Kit - Mil Spec
    Item#:
    100-010-861  
    Our Price:
    $59.99
    Description:
    All-in-one kit lets you quickly mount an M4-style receiver extension to accept the adjustable buttstock of your choice. Extruded aluminum buffer tube comes with carbine buffer, buffer spring, castle nut, and end plate sling adapter. Features six positions for stock length adjustment and unique "no bind" sling attachment that gives 180 degrees of motion. Mil Spec and Commercial models available. Mfg: Tapco Weapons Accessories Extruded 7075 T6 aluminum, matte black finish. Incudes carbine buffer, spring, castle nut, and sling plate adapter. Mil-Spec- 7 1/4" (18cm) long. 1.14" (2.8cm) O.D. Commercial-7 3/4" (19cm) long. 1.17" (2.9cm) O.D.
  3. Ar-15/M16 Buffer Tube Assembly - Colt Buttstock Mounting Kit, Mil-Spec
    Item#:
    080-000-620  
    Our Price:
    $109.99
    Description:
    All The Original Factory Parts Needed To Install Rifle & Carbine Buttstocks
  4. Ar-15/M16 Buffer Tube Assembly - Dpms Buttstock Mounting Kit, Mil-Spec Carbine
    Item#:
    231-000-338  
    Our Price:
    $51.99
    Description:
  5. Ar-15/M16 Buffer Tube Assembly - Dpms Buttstock Mounting Kit, Comm. Carbine
    Item#:
    231-000-337  
    Our Price:
    $45.99
    Description:
  6. Ar-15/M16 Buttstock Extender - Ar-15 Stock Extension
    Item#:
    231-000-009  
    Our Price:
    $31.99
    Description:
    Aluminum extension provides an extra inch of stock length for AR-15A1 and A2 rifles. Helps shooters achieve a more comfortable head position for faster sight alignment, plus the extra length improves recoil and trigger control. Provides tall shooters and those long arms a more comfortable, natural, stock fit. Installs between stock and receiver; has the correct profile for a "belongs there" look. Mfg: Dpms SPECS: 6061 T-6 aluminum, black, matte finish. Includes buffer tube extension and longer stock screws.

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Mil Spec Ammo
  1. Ultramax Cowboy  Action Ammunition - Ultramax Ammo 44 Mag 240gr Rn-Fp Cowboy
    Item#:
    105-202-368  
    Our Price:
    $32.99
    Description:
    50 per box Cowboy action loads Round Nose Flat PointWhether you're an enthusiast of the Old West, or simply like the feel of classic Cowboy loads, you'll enjoy taking aim with Ultramax Ammo, RNFP. These trusted rounds are manufacture with care and quality, so you can depend on their accuracy and performance from shot to shot. Mfg: Ultramax See Item Details Below
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Searching for Mil Spec Buffer Tubes? Brownells.com carries the best selection at the lowest prices around. Ranging in price from $24.99 to $129.99, our assortment of 22 Mil Spec Buffer Tubes and Buttstock Extension Tube Assembly features all the top choices available. As the internet's top seller of gun parts and gunsmith tools, we're able to bring you the best products, excellent prices, and reliable customer service every day. We know you'll find our Mil Spec Buffer Tubes to be everything you expect, so we're proud to offer a 100% satisfaction guarantee. If you're not completely satisfied with your purchase, we'll make it right; whatever it takes. So check out our complete selection of Mil Spec Buffer Tubes and place your order online or by calling us toll free at 1-800-741-0015. We're here to provide you with all the gun parts and gunsmith tools and information you need, so - if you don't find what you're looking for online - give us a call!