Lightweight AR-15 Carbine Buffer Tube Assembly Mil Spec Diameter - 6 Position Carbine Buffer Tube, QD End Plate, Castle Nut, 3 oz Buffer, & Spring

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Breek Arms is excited to offer a new lightweight all in one assembly at an extremely affordable price that contains all the components needed to mount a buttstock of your choice to an AR-15 rifle or M4 carbine.  This 6 Position Mil Spec Diameter Tube (1.14") will function on any standard AR-15 Lower Receiver and accept any mil spec diameter stock.  The tube will not fit any commercial sized stocks. The buffer tube is precision machined with grooves that reduce the overall weight while retaining structural integrity. The fluted design is lightweight, strong, functions great, and looks great!

The 5 Piece Buffer Tube Assembly Kit includes all of the following...

  • 3.1 oz Lightweight Mil Spec 6 Position Buffer Tube
  • Buffer Spring
  • 3 oz Recoil Buffer
  • Castle Nut
  • QD End Plate

Product Specs

Material: 6061 T6 Impact Extruded Aluminum

Finish: Hard Coat Anodized - Black

Style & Size: 6 Position Carbine Mil-Spec Diameter

Outer Diameter: 1.14 inches

Buffer Length: 3.25 inches

Buffer Tube Length: 7.5 inches (bottom of tube), 7.25 inches (top of tube)

Total Kit Weight: 8.9 ounces



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  • 4
    Spot rust

    Posted by Justin U Sharp on Aug 13th 2019

    Very nice light weight buffer tube, especially for the price, but the castle nut showed up covered in spot rust.

    BREEK ARMS Customer Service Comment:

    We apologize for this and want to make sure you are taken care of - we always stand behind our products and want to ensure you receive un-blemished products. We have sent an email to you to get this resolved.