V7 Weapon Systems, known for the plethora of ultra-light and titanium parts, has released their latest ultra-light part for the AR-15, a lower receiver. The new receiver features a relatively new alloy, 2055, which features a relatively high lithium content. The alloy is stronger for both toughness and strength, by about 20% in each regard according to Alcoa, the developer of the alloy.

The receiver set is about as bare-bones as one can get, and comes in at a scant 6.4 ounces, just below the similar low-weight 2A Armament Balios Lite (which clocks in at 6.5 ounces). The receiver includes a built-in winter trigger guard and an ultra-light end plate.

Receiver markings are kept to a minimum (though there is a “V” on the right-side of the receiver) and the safety-selector is machined for easy recognition with both 90-degree and the various 45/57/60 degree throw options in the market.

Price for the “Enlightend” Lithium Aluminum lowers is set at $359 retail. Rainier Arms is running a special at ~$323 for the initial launch.

Specs (Courtesy of V7):

ENLIGHTENED 2055 LITH/ALUM AR-15 LOWER RECEIVER
–  BILLET AR-15 LOWER RECEIVER
–  CONSTRUCTED FROM ADVANCED 2055 LITHIUM/ALUMINUM
–  TYPE III HARDCOAT ANODIZE
–  WEIGHS 6.4 OZ
–  SHIPS WITH QD ENDPLATE (7075 T6)
–  ADVANCED 2055 LITHIUM ALUMINUM ALLOY IS LIGHTER, STRONGER, MORE RIGID & CORROSION RESISTANT THAN STANDARD 7075 T6
–  MIL SPEC COMPATIBLE
–  MADE IN THE USA
–  100% LIFETIME WARRANTY