Montana-based firearms manufacturer Shield Arms announced this week the release of the world’s first folding AR-15 lower receiver, the aptly-named Folding Lower Receiver (FLR). Currently only offered as a 9mm stripped receiver, the FLR features a folding mechanism machined directly into the 7075 billet aluminum receiver.
The unit allows the stock or pistol brace to fold without the need for an aftermarket folding stock adapter and only adds 5/8” to the overall length of the receiver, less than half the length of some popular aftermarket adapters, according to the company’s press release.
The unit comes with a buffer, and the preinstalled folding stock mechanism accepts any standard aftermarket buffer tube. The FLR can be used with a mil-spec bolt and bolt carrier group as well as a standard lower parts kit. It does not need any additional parts to function properly, and the SA-9 accepts Glock magazines.
The FLR is designed and manufactured in the United States and can be had for an MSRP of $399.99 (though the website currently lists the item as “Out of Stock”). The company did not announce whether they have any plans to release the FLR for an AR-platform rifle chambered in .223/5.56, though they do plan to license the design to other manufacturers.
For those who want a complete rifle, Shield Arms is also offering the SA-9, a closed bolt, blowback operated AR-15 style weapon system that accepts standard Glock 9mm magazines, built on the FLR. The pistol version of the SA-9 features the SB Tactical SBA3 pistol brace.
- Upper/Lower: Shield Arms 7075-T6 billet aluminum upper/lower
- Barrel: Ballistic Advantage 5.5″ Modern Series, 1/2×28 threads, 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish
- Handguard: 4.4″ MLOK
- Bolt Carrier Group: black nitride coated blowback
- Trigger: ALG ACT
- Grip: Magpul MOE
- Charging Handle: Radian Weapon Systems Raptor
- Muzzle Device: Thread protector
- SB Tactical SBA3 5 position adjustable brace
The select fire version of the SA-9 was recently selected by the US Army to participate in the Sub Compact Weapon Prototype Opportunity.
MSRP is $1,499.99.
UPDATE (11/2/18): Shield Arms President Brandon Zeider tells GunsAmerica that a 5.56/300BLK version of the FLR should be released “at the same time, or worst case, a few weeks after the 9mm.” While the price isn’t finalized for the 5.56, it should be slightly lower than the 9mm version.