Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

Precision Forged From High-Strength 7075 Alloy For High Quality Custom Builds

M4/A3-style upper receiver is available stripped or with the forward assist and ejection port cover already installed. Precision machined from a 7075 T6 aluminum alloy forging to USGI dimensions, and ready to mate with the mil-spec lower and internal components of your choice. Includes M4-type feed cuts and alphanumeric position markers stamped into the rail slots. Hardcoat anodized to resist wear, add strength, and protect from corrosion. Hard dry-lube surface treatment protects the anodizing from scuffs and reduces friction between bolt carrier and receiver walls for ultra-smooth operation, less wear, and longer service life.


AR-15, Issue:10, Page:003
Brownells Christmas , Issue:2X, Page:006
Big Book Catalog, Issue:68, Page:005
New Product Supplement, Issue:621, Page:001

SPECS: 7075 T6 aluminum, hardcoat anodized, dry-lube finish, matte black. .250” takedown/pivot pin holes. Steel forward assist and ejection port cover; black oxide finish.

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2 Item(s)
DSA A3 UPPER REC W/M4 FEED RAMPS
274-000-019WB
Stripped Flattop Upper Receiver
274000019Stripped Flattop Upper Receiver

Mfr Part: DSZM4A3UM4

$89.99

In Stock

Cartridge: 223 Remington

Finish: Matte Black

Style: Stripped

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STRIPPED UPPER W/ PORT DOOR & FA
274-000-021WB
Upper Receiver w/Cover & Fwd Assist
274000021Upper Receiver w/Cover & Fwd Assist

Mfr Part: DSZM4R2C

$99.99

In Stock

Cartridge: 223 Remington

Finish: Matte Black

Style: Stripped

AR-15/M16 FLATTOP UPPER RECEIVER