Ar-15 M4 Stripped Upper Receiver Black Brownells

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Sometimes you want the latest, updated, tweaked component, and sometimes you need a basic stripped receiver where the production effort goes into ... Sometimes you want the latest, updated, tweaked component, and sometimes you need a basic stripped receiver where the production effort goes into ...

Ar-15 M4 Stripped Upper Receiver Black Brownells.

A Solid Foundation for Your Next Custom Build

Sometimes you want the latest, updated, tweaked component, and sometimes you need a basic stripped receiver where the production effort goes into quality, rather than bells and whistles. The Brownells M4 Stripped Upper Receiver is that component - the perfect starting point for many an AR-15 build.

Starting with a 7075 T6 aluminum forging, our stripped M4 flattop upper is precision machined to final dimensions that make it compatible with the multitude of available "mil-spec" AR-15 components. It has a matte black, Type III hardcoat anodized finish, mirroring the military requirement.

  • Machined from 7075-T6 aluminum forging
  • Matte black Type III hardcoat anodized finish
  • Mil-spec dimensions for maximum parts compatibility
  • Standard .250" dia. pivot/takedown pin holes
  • T-marked Picatinny top rail

Inside our upper features M4 feed ramps to aid in chambering during high rates of fire. And outside the T-marks in the Picatinny rail’s slots are painted to aid in fast exchanges of optics.

Please note: this is a truly stripped upper receiver, with NO forward assist or ejection port cover installed, so you can truly customize every aspect of your rifle. The Brownells M4 Stripped Upper Receiver is a top-tier upper receiver, at a great price.


Big Book Catalog, Issue:71, Page:002

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The SB Tactical SBA3 Pistol Stabilizing Brace adds 5 positions of adjustments for the perfect fit as well as offering all of ... The SB Tactical SBA3 Pistol Stabilizing Brace adds 5 positions of adjustments for the perfect fit as well as offering all of ...

Sba3 Pistol Stabilizing Brace 5-Position Adjustable Sb Tactical.

5 Positions for Maximum Versatility

The SB Tactical SBA3 Pistol Stabilizing Brace adds 5 positions of adjustments for the perfect fit as well as offering all of the benefits of a pistol arm brace.

The minimalist design features compatibility with a standard mil-spec carbine receiver extension, an ambidextrous QD socket, and an adjustable nylon strap.

  • 5-position pistol stabilizing brace
  • Includes Mil-Spec carbine extension
  • Fits: Mil-Spec AR15 receivers
  • Weight: 6.75 oz.
  • 6.1” long and 1.8” wide

Available in both black and flat dark earth, the SB Tactical SBA3 Pistol Stabilizing Brace is a great addition to your next AR pistol build.

Does not include the lock nut or end plate. Those will need to be purchased separately.


Big Book Catalog, Issue:71, Page:050

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