new frontier armory c-4 side folding billet ar15 lower receiver built in side folder ar-15 1.jpg

New Frontier Armory recently announced their latest offering in the AR-15 pattern of lower receivers with the C-4 bollet lower featuring side folder.

In some cases to convert your standard AR-15 to a side folder could cost a few hundred dollars.

However if you know that is the set up you plan on running why not just go ahead and buy a dedicated lower that has the side folder integrated in.

Not only is this option cost effective but in some cases it might also prove to be the far more reliable option.

New Frontier Armory’s side folding lowers are also available in few other models including the popular C-5 pcc lower that accepts MP5 style magazines.

new frontier armory c-4 side folding billet ar15 lower receiver built in side folder ar-15 2

SPECIFICATIONS:

– Manufacturer: New Frontier Armory
– Model: C4-SF
– Type: AR-15 Stripped Lower Receiver with side folding rear end– milled from 7075 T6 aircraft grade aluminum billets
– Caliber: Multi (will accept any upper and/or caliber designed for the AR-15 platform)
– Magazine: Accepts any standard MIL-SPEC AR-15 magazine
– Machined from 7075-T6 aircraft grade billet aluminum
– Matte black hard-coat anodized per Mil 8625 Type 3 Class 2
– Precision broached magazine well with beveled feed lips
– Machined and engraved to be compatible with 45 and 60 degree short throw fire control selectors such as the BAD_ASS ST 45 Lever
– Caliber marking of “Multi” so it can be used with many different caliber uppers
– Compatible with all standard AR-15 components and magazines 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)
– Compatible with Norgon and other aftermarket ambidextrous mag releases
– Threaded bolt catch pin (Threaded hole and hardware)
– Integrated large opening “winter” trigger guard
– Proprietary hinge and folding parts included and installed at the factory
– Proprietary Recoil Buffer included
– Manufactured to MILSPEC on state of the art CNC equipment for consistent quality parts and exacting tolerances

new frontier armory c-4 side folding billet ar15 lower receiver built in side folder ar-15 3.jpg
To learn more about New Frontier Armory and the C-4 side folding billet AR15 lower receiver. CLICK HERE

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