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San Tan Tactical

San Tan Tactical STT-15 Ambi Lower Receiver No Logo 45 Safety

San Tan Tactical STT-15 Ambi Lower Receiver No Logo 45 Safety

Availability: In stock




The Ultimate Ambidextrous AR-15 M4 Platform

They designed this lower receiver out of necessity and a desire to have a true ambidextrous AR-15 M4 platform. Allowing it to accommodate any and all shooters without the need to add countless costly add-ons. Whether you are a right or left handed shooter, or forced to shoot with your off hand, the STT-15 has you covered! STT-15 is designed specifically for situations in which there's no room for error and you must use your rifle to take that shot!

They machine the STT-15 directly from a billet of 7075-T651 aerospace grade American aluminum on their brand new Haas CNC machinery. This allows them to hold ultra-tight tolerances and make sure that the final product is exactly as designed. The finished receiver is then finished in Mil-Spec, MIL-A-8625 Type III hard anodizing.

Even though this is a tool to some it is a show stopper to others! The final finish is every bit as important as the features and materials the lower consist of! The STT-15 is everything you have come to expect from a San Tan Tactical, and then some.


  • Ambidextrous Bolt Release.
  • Ambidextrous Magazine Release.
  • Ambidextrous Quick Attach Detach Sling Swivel Points.
    (With Anti-Rotation Stops Every 45 Degrees)
  • Huge 1.38" Integrally Machined Magazine Well Flare
  • 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.
  • Dowel Screw Assembly.
  • Ultra Grip Texture On All Controls.
  • Weight: 9.4 oz
  • Material: Billet 7075-T651 Aerospace Grade Aluminum, Steel - Black Oxide

FFL Required Before Shipping. Please have your dealer email their license to or they can also fax it in. Please give us a few days to process the information.

Additional Info

Additional Info

Manufacturer San Tan Tactical
Finish No
Barrel Length No
Caliber No
Configuration No
Option No
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No


Customer Reviews (3)

Great lower, minor quirksReview by
Overall this lower is fantastic. I'm a lefty. I really like purpose made pieces rather than something that's retrofitted for a lefty. I bought this with the expectation that everything would have the tight fit that all the regular controls have. The left side mag release is pretty loose. Just like a BAD lever or Troy ambi mag release. Sort of disappointed with that, but overall it all seems to be great. No issues so far. (Posted on 7/6/2016)
Best lower money can buy!Review by
I have purchased 3 of these now and absolutely love them. The placement of the Ambi controls is second to none and operation of them is natural and not a forced skill. I will use the STT-15 for all of my builds from now on.

To the reviewer below SED. Just call san tan they will get you fixed up. they even sent me a free sticker and patch. A++ customer service!
(Posted on 12/4/2015)
Responce to previous review by SEDReview by
Hello SED,

This definitely not normal. Please contact me directly at or 480-204-0082 and I can get you squared away ASAP. I'm not sure exactly what happened but we will get you fixed up immediately! you have a lifetime warranty so it is 100% no cost to you.

Thank you,
Dennis Harless
San Tan Tactical
(Posted on 5/28/2015)

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