New Frontier Armory C5 9mm Lower - MP5

Manufactured by New Frontier Armory
Manufactured by New Frontier Armory
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NOTE: Limit 3 per household. Quantities exceeding 3 will not allow checkout.

Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal Firearm License holder.
•Current processing time is approximately 14 to 16 days.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers. Due to Covid-19 many are no longer open
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to



The New Frontier Armory 9mm Stripped Lower Receiver is the perfect start for your next pistol-caliber carbine build! Designed from the start to accept the battle proven double stack MP5 magazines in 9mm! Fully compatible with most standard and aftermarket AR-15 parts, this lower features a proprietary magazine catch assembly and ejector factory installed.

  • MP5 Magazine Compatible
  • Threaded takedown pin spring / detent hole
  • Upper tension screw
  • Threaded bolt catch pin
  • Oversized Winter style trigger guard
  • Precision machined 7075-T6 Aluminum billet
  • Magazine release and ejector factory installed
  • Not California compliant, integral magazine release
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BrandNew Frontier Armory
Caliber Marking9mm Luger
FinishHardcoat Anodized
Receiver Material7075-T6 Aluminum
Trigger Pin DiameterMIL-SPEC .154

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

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