Shield Arms SA15 FLR: Integrally Folding AR15

The coolest thing about the Shield Arms SA-15 FLR isn’t that it’s a folding AR15 (although that’s pretty cool). The coolest thing about the Shield Arms SA-15 FLR is that it’s an integrally folding AR15: meaning no after-market thingamawhatsits to get it thataway. 

Hence Folding Lower Receiver (FLR). Funny how that works eh? 

Anyway, the Shield Arms Folding Lower Receiver (FLR) is now available in pistol, rifle, and stripped lower configuration and (as of this writing) it’s in stock. As originally reported on Soldier Systems Daily, the SA-15  FLR is a fully-folding lower receiver that does not require an adapter. 

It’s a patent-pending billet AR-15 lower receiver with a folding stock mechanism machined and built directly into the receiver, allowing the stock or pistol brace to fold without the need of an aftermarket folding adapter.

The various SA15s feed via standard (i.e. unmodified) AR15 magazines. 

• SA15 Folding AR15 Rifle
• SA15 Folding AR Pistol
• SA15 Folding AR Pistol A2
• SA15 Folding AR15 Stripped Lower Receiver

Here’s what it looks like when locked in place and set up with some other cool toys for Insta:

Each respective configuration is detailed below.

SA-15 FLR

A 16 in. folding Rifle built on Shield Arms folding lower.

Build Specifications

• Upper/Lower: 7075-T6 billet aluminum upper/lower
• Barrel:
  • 16″ length, 5.56 NATO Chamber
  • Mid-length length gas system
  • 1:7 RH twist
  • 4150 CMV
  • Stress relieved after rifling
  • Black Nitride finish
  • M4 extension
  • .076″ gas port
• Bolt Carrier Group
  • Black Nitride finish
  • Shot peened
  • Magnetic Particle Inspected
  • 9310 5.56/.223 bolt
  • 8620 M16 carrier
• Handguard: Shield Arms 13″ MLOK
• Trigger: Enhanced Milspec
• Safety: Shield Arms Ambi Safety Selector
• Grip: Magpul MOE SL
• Gas Block: Shield Arms Adjustible Gas Block
• Muzzle Device: A2
• Buttstock: B5 Systems Bravo
• Charging handle: Milspec
• Weight: 6 lbs 10 oz
• Ships with 1 magazine

SA-15 Folding 11.5 in. Pistol (5.56 NATO)

SA-15 Folding 11.5 in. Pro Pistol built on the Shield Arms FLR for compact storage.

Build Specifications

• Upper/Lower: 7075-T6 billet aluminum upper/lower
• Barrel:
  • 11.5″ length, 5.56 NATO Chamber
  • Carbine-length length gas system
  • 1:7 RH twist
  • 4150 CMV
  • Stress relieved after rifling
  • Black Nitride finish
  • M4 extension
  • .070″ gas port
• Bolt Carrier Group
  • Black Nitride finish
  • Shot peened
  • Magnetic Particle Inspected
  • 9310 5.56/.223 bolt
  • 8620 M16 carrier
• Handguard: Shield Arms 10″ MLOK
• Trigger: Enhanced Milspec
• Safety: Shield Arms Ambi Safety Selector
• Grip: Magpul MOE SL
• Gas Block: Shield Arms Adjustable Gas Block
• Muzzle Device: A2
• Pistol Brace: SB Tactical SBA3
• Charging handle: Milspec
• Weight: 5 lbs 15 oz
• Ships with 1 magazine

SA-15 Folding 11.5 in. A2 Pistol (5.56 NATO)

SA-15 Folding 11.5″ A2 Pistol built on the Shield Arms FLR for compact storage.

Build Specifications

• Upper/Lower: 7075-T6 forged aluminum upper/lower
• Barrel:
  • 11.5″ length, 5.56 NATO Chamber
  • Carbine-length length gas system
  • 1:7 RH twist
  • 4150 CMV
  • Stress relieved after rifling
  • Black Nitride finish
  • M4 extension
  • .070″ gas port
• Bolt Carrier Group
  • • Black Nitride finish
    • Shot peened
    • Magnetic Particle Inspected
    • 9310 5.56/.223 bolt
    • 8620 M16 carrier
• Handguard: Magpul MOE SL Carbine-length
• Trigger: Enhanced Milspec
• Safety: Shield Arms Ambi Safety Selector
• Grip: Magpul MOE SL
• Muzzle Device: A2
• Rear Sight: Griffin Armament M2
• Pistol Brace: SB Tactical SBA3
• Charging handle: Milspec
• Weight: 6.0 lbs
• Ships with 1 magazine

SA-15 Stripped Folding Lower Receiver

SA-15 stripped folding AR15 billet lower receiver built on the Shield Arms folding lower receiver.

Features

• Built-in folding mechanism for compact storage – NOT AN ADAPTER
• Machined from 7075-T6 aircraft grade billet aluminum
• Ships with an h2 weight proprietary buffer
• Accepts standard AR-15 magazines
• Matte black hard-coat anodized per Mil 8625 Type 3 Class 2
• Precision machined magazine well with beveled feed lip for easy mag changes
• Caliber marking of “MULTI”
• Compatible with most standard AR-15 components  and most aftermarket parts
• Takedown 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
• Threaded bolt catch pin (Threaded hole and hardware)