San Tan Tactical STT-15 Pillar AMBI Billet Set (AR-15)

San Tan Tactical STT-15 Pillar AMBI Billet Set (AR-15)


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Being left handed won’t be an issue when you are running this ambidextrous billet receiver set.


The San Tan STT-15 is not just another AR Receiver; it’s your final answer. Before the development of the San-Tan STT-15, the only option for left-handed shooters was to either adapt to a right-handed platform, or purchase expensive add-on accessories. It has always been difficult and frustrating to try and find the right combination of accessories to allow the weapon to be manipulated accurately, quickly, and correctly. Even with hundreds of dollars in additions, the fit and feel of the rifle were never quite right. When SanTan Tactical designed this receiver, they wanted it to not only accommodate left-handed shooters but to accommodate right-handed operators equally as well.


STT Lower Features:

  • Huge 1.38” Integrally Machined Magazine Well Flare

  • Ambidextrous Quick Attach Detach Sling Swivel Points with Anti-Rotation Stops
  • Ambidextrous Bolt Release
  • Ambidextrous Magazine Release
  • Bullet Pictogram Safety Selector Markings
  • Set Screw Trigger Creep Adjustment
  • Set Screw Upper Take Down Tension Adjustment
  • Shooter Ready Finger Rest
  • Oversized Winter Trigger Guard Perfect for Gloved Hands
  • Dowel Screw Assembly
  • Ultra-Grip Texture on All Controls


STT Upper Features:

  • San Tan Tactical Truss Pockets for Increased Structural Rigidity
  • Cut from a Single Billet 7075 -T6 Aerospace Grade Aluminum
  • Shell Deflector
  • Fully Assembled with Forward Assist & Ejection Port Cover
  • Machined in T Markings for Easy Optic Relocation
  • Machined with M4 Feed Ramps
  • Machined to Mil-Spec Standards
  • Interfaces with all AR15/M16/M4  Systems & Accessories
  • Compatible with Multiple Rails, Anti-Rotation Tabs & Pins
  • Compatible with All Known Battery Levers
  • No Roll Pin Design – Forward Assist Attaches Via Threaded Dowel Pin

Additional information

Model: STT-15
Action: Semi-Auto
Dimensions: Length: 7.69” Width: 1.490” Height: 4.015”
Weight: 17.6oz – Upper: 8.2oz Lower: 9.4oz
Material: Billet 7075-T651 Aerospace Grade Aluminum, Cast A-2 Tool Steel
Finish: Aluminum – Matte Black MIL-A-8625 Type III Hard Anodized, Steel – Black Oxide
Butt-Stock: Works with Any Mil-Spec or Commercial Buffer Tube and Stock.
Magazine Compatibility: (Lock-In, Drop Free Additional Magazines Will Be Added as Tested) 100 Round Beta Mag, 100 Round Surefire,60 Round Surefire, 30 Round Magpul P-MAG Any Generation, 20 Round Magpul P-MAG Any Generation, 10 Round Magpul P-MAG Any Generation, 30 Round Mil-Spec Mag, 20 Round Mil-Spec Mag
Component Compatibility: Works with All Mil-Spec AR-15\M16 Components

Weight 2 lbs
Dimensions 9 × 7 × 4 in

Upper/Lower Set, Stripped Lower


SanTan Tactical

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