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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 Matrix Arms 80% Forged AR-15 Lower Receiver takes the DIY AR build to the next level for the dedicated AR owner, ... The Matrix Arms 80% Forged AR-15 Lower Receiver takes the DIY AR build to the next level for the dedicated AR owner, ...

Ar-15 80% Lower Receiver Forged Matrix Arms.

An AR Lower Shipped Straight to Your Front Door

The Matrix Arms 80% Forged AR-15 Lower Receiver takes the DIY AR build to the next level for the dedicated AR owner, giving them the chance to machine out the interior pocket themselves for the ultimate AR project.

The Matrix Arms 80% Forged AR-15 Lower Receiver includes all of the exterior machining done for you and only needs the interior pocket for the hammer and trigger machined in order to make it a fully functioning lower.

  • Constructed from 7075-T6 aluminum
  • Can be had in unfinished or black anodized finishes
  • Does not have to be shipped to an FFL dealer
  • Stamped with S & F on both sides

The Matrix Arms 80% Forged AR-15 Lower Receiver also features a take-down lug pocket and is a great way to take on an advanced AR build.

Returns will not be accepted once the receiver is modified in any way. All warranty issues will be directed to the manufacturer.


Big Book Catalog, Issue:71, Page:008

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While the New Zealand military might not be anyone's first thought when it comes to emulating a country's military-issue arm, there's no ... While the New Zealand military might not be anyone's first thought when it comes to emulating a country's military-issue arm, there's no ...

Ar-15 Cqb Starter Kit Upper Receivers 5.56 Picatinny Lewis Machine & Tool.

Outfit Your Kit with a Kiwi-Ready Carbine

While the New Zealand military might not be anyone's first thought when it comes to emulating a country's military-issue arm, there's no question that the Kiwis have a unique battle rifle that's worth replicating. The Lewis Machine & Tool CQB Starter Kit will get users on their way to having a unique AR-15 that rounds out their military collection.

Each Lewis Machine & Tool CQB Starter Kit includes a monolithic upper receiver that is compatible with any standard mil-spec lower receiver. The kits include a chrome-lined barrel in a New Zealand profile, which is surrounded by a Picatinny-railed, carbine-length handguard.

  • Chambered in 5.56 NATO
  • Twist rate: 1:7 inches
  • Does not include charging handle or bolt-carrier group
  • Matte-black finish

Another unique feature in the Lewis Machine & Tool CQB Starter Kit are the MRP quick-change barrel set-up, and the kits can be had in three different barrel configurations, two 16-inch options and one 10.5-inch model.

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Aero Precision’s M4E1 Stripped Lower Receiver delivers the strength and unique looks of a billet machined lower, with the lower cost, lighter ... Aero Precision’s M4E1 Stripped Lower Receiver delivers the strength and unique looks of a billet machined lower, with the lower cost, lighter ...

Ar-15 M4e1 Stripped Lower Receivers 5.56mm Aero Precision.

Strength of a Machined Receiver With Universal Fit of a Forged Lower

Aero Precision’s M4E1 Stripped Lower Receiver delivers the strength and unique looks of a billet machined lower, with the lower cost, lighter weight, and easy parts compatibility of a forged lower. The M4E1 starts as an "enhanced" forging from extra-strong 7075 T6 aluminum that is precision machined to final dimensions for compatibility with all standard "mil-spec" AR-15 parts. As a bonus, the good-looking M4E1 has a streamlined profile, without the chunky appearance of many milled lowers.

Actually, the Aero Precision M4E1 Stripped Lower Receiver is not quite "stripped." Extra benefits include an integral triggerguard, which creates a more rigid, structurally sound receiver than a standard AR-15 lower, and also eliminates the risk of accidentally breaking off a triggerguard tab when working on the rifle. The enlarged triggerguard opening gives extra clearance so you can easily operate the trigger when wearing gloves.

The M4E1 comes with an easy-to-install threaded bolt catch roll pin that eliminates the risk of damaging the lower’s finish during installation (OK, you may be able to still do damage, but you’ll have to work hard at it!). Other features of the Aero Precision M4E1 stripped lower include:

  • Flared magwell opening facilitates fast, one-shot mag changes
  • Threaded takedown pin detent recess for easy buffer removal without chasing down a flyaway detent!
  • Accepts standard mil-spec AR-15 fire control components, pistol grip, buffer tubes & stocks
  • Hardcoat anodized to resist surface wear, in Matte Black or Cerakote™ Flat Dark Earth

The Aero Precision M4E1 Stripped Lower Receiver even has a polymer-tipped tensioning screw nestled in the grip tang that you can adjust for a tight, rattle-free fit with the upper receiver. All the benefits of a custom machined lower without the downside!
 


Big Book Catalog, Issue:71, Page:007

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