New Frontier Armory (NFA) is shipping their C-5 AR receivers. Not just another Colt clone, these guns run MP5 magazines. The big advantage to this is that the MP5 magazines are great in carbines and rifles. The Colt magazines were hard to load and prone to failures.
I have been working with Pistol Caliber Carbines (PCC) since the Colt SMG. I have always liked being able to shoot economically and train on pistol rated steel targets. PCCs have gotten steadily better over the years and I think the C-5 may represent the pinnacle of their evolution.
The C-5 looks better than its Glock magazine fed cousins and pistol magazines aren’t as good as subgun magazines. You can buy the lower with a matched upper. They even sell an 80% version for a complete build project.
The C-5 lower was designed to fit and drop free factory MP5 9mm magazines. NFA offers KCI MP5 9mm 30-Round Magazines on their site for $34.99
Although it accepts and shoots KCI aftermarket magazines, New Frontier warns that some slight modification may be needed to get some aftermarket magazines to drop free because of the width measurements can vary from H&K MP5 factory specifications.
I have been looking forward to this product. New Frontier has a great reputation and I fully expect the C-5 is going to be a great gun.
C-5 Billet Lower
- Manufacturer: New Frontier Armory
- Model: Stripped C-5 Billet Lower (MP5 Mag) – Anodized – Packaged w/ Hardware
- Caliber: 9mm
Stripped C-5 Billet Lower (MP5 Mag) – Anodized – Packaged w/ Hardware
Manufacturer: New Frontier Armory
Type: Stripped Lower Receiver — milled from 7075 T6 aircraft grade aluminum billets
Weight: 0.75 pounds
Other Specifications and Features of the Stripped C-5 Billet Lower (MP5 Mag):
- Machined from 7075-T6 aircraft grade billet aluminum
- Matte black hard-coat anodized per Mil 8625 Type 3 Class 2
- Precision machined magazine well with beveled feed lip for easy mag swaps
- Machined and engraved to be compatible with 45 and 60-degree short throw fire control selectors such as the BAD_ASS ST 45 Lever
- Compatible with most standard AR-9 components and most aftermarket parts
- Take down pin spring and detent hole is threaded for a 6-32 set screw for easy capturing (hardware included)
- Upper tension screw behind grip screw (threaded hole with hardware included) to adjust any “slop” out of vertical fit between upper and lower
- Ambidextrous trigger finger rests with grooves (above and below mag release/mag catch)
- Threaded bolt catch pin (Threaded hole and hardware)
- Integrated large opening “winter” trigger guard
- Proprietary magazine catch assembly, feed ramp, and ejector is included and installed at the factory
- Manufactured to MILSPEC (where applicable) on state of the art CNC equipment for consistent quality parts and exacting tolerances
- Save money by building your own AR-9 rifle from the ground up exactly the way you want it configured and shoot for less!
**NOTE — You must use an upper that has widening cuts to accept the larger width MP5 Magazines — We sell three versions of C-5 Uppers that can be found HERE.
Pistol caliber specific LPK is available by CLICKING HERE
Magazines can be found HERE
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