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San Tan Tactical STT-15L Lite Pillar Billet Receiver Set
San Tan Tactical STT-15L Lite Pillar Billet Receiver Set

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MSRP: $429.59

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Description Learn More
The STT-15L Lite PILLAR Receiver Combo has all the same great aesthetics as our STT-15 Receiver but incorporates a significant weight reduction. The San Tan Tactical STT-15L Lower weighs 7.7 oz and accepts all Mil-Spec AR-15\M16 components and lower parts kits, excluding the ambidextrous controls. The STT-15L Upper weighs 6.9 oz and works with all Mil-Spec AR-15\M16 components including all known handguard options currently available.

  • A True Hand Matched Receiver Set With The Upper Serialized To Match The Lower Serial Number.
  • Huge 1.38” Integrally Machined Magazine Well Flare.
  • Short Throw Bullet Pictogram Safety Selector Markings Marked.
  • Set Screw Trigger Creep Adjustment.
  • Set Screw Upper Take Down Tension Adjustment.
  • Captured Rear Take Down Pin Detent And Spring.
  • Oversized Winter Trigger Guard.
  • No Roll Pin Design, Assembles Using Included Threaded Dowel Screw.
  • San Tan Tactical PILLAR® Truss Pockets For Increased Structural Rigidity.
  • Cut From A Single Billet Of 7075 -T651 Aerospace Grade Aluminum.
  • Shell Deflector
  • Machined In T Markings For Easy Optic Relocation.
  • Machined With M4 Feed Ramps.
  • Machined To Mil-Spec Standards.
  • Interfaces With All AR15/M16/M4 Weapons Systems And Accessories.
  • Accepts ALL Known Handguards Without Modifications.
  • Mil-Spec Type III Class II Hard Coat Anodized Black
  • Ultra-Light Design. Ultra Strong Yet Lite Weight. Weighing Only 14.6 Ounces / 413.9 Grams For The Matched Set.
  • Backed By STT’s Unmatched Lifetime Warranty.
  • Made in the USA!


  • Model: STT-15L
  • Caliber: Multi-Cal
  • Action: Semi-Auto
  • Weight: 14.6oz – Upper: 6.9oz Lower: 7.7oz without Ambidextrous Controls.
  • Dimensions: Length: 7.69” Width: 1.490” Height: 4.015”
  • Material: Billet 7075-T651 Aerospace Grade Aluminum, Cast A-2 Tool Steel
  • Finish: Aluminum – Matte Black MIL-A-8625 Type III Hard Anodize, Steel – Black Oxide
  • Buttstock: 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 Will All Mil-Spec AR-15\M16 Components*
  • *Excluding proprietary ambidextrous controls.