New Frontier Armory

Gen 2 .40 cal Complete Upper Receiver, Rear Charging

(1 Review)
Category: Rear Charging Upper Receivers
: Gen 2 .40cal PC Complete Upper
: Pistol Cal
: .40 cal
BBL Length
: 4", 8", 16"
: Black Ano
Charge Handle Type
: Rear Charging
BBL Length (required)

Gen 2  .40 cal Pistol Caliber Complete Upper


Specifications and Features of the 9mm Pistol Caliber Complete Uppers

  • Gen 2 Pistol Caliber Billet Upper with integrated LRBHO
  • .40cal Bolt Carrier Group – BCG (Glock & Colt Lower Compatible)
  • .40cal AR Barrel (1:10), 4", 8" or 16"
  • Lightweight Free Float Hand Guard, M-LOK
  • Standard ½” Crush Washer
  • Standard Flash Hider .45
  • Standard AR-15 Charging Handle

The New Frontier Armory Pistol Caliber Complete Uppers are proudly MADE IN THE USA by hard working American men and women.

Weight: 4.63 LBS
Dimensions: 28.00 x 4.00 x 4.00 in
Color: Black Ano

Reviews (1)

FANTASTIC upper receiver

Written by Ramon m. on 7th Aug 2023

This is my 2nd upper from New Frontier Armory and I could not be more pleased with the fit and finish of the receiver. Being a .40 cal the other moving parts will all play a part in its functioning, however, who doesn’t love the thump of a .40 cal carbine!! I did have to use a 10oz buffer weight to ensure enough mass on the recharge but tweaks are to be expected l!

Customer Also Viewed