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STI 2011 Apeiro 5" .40 S&W 14rd

STI Apeiro, .40 S&W, 5" BBL, 14rd

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Clean lines and smart design define the Apeiro.


The Apeiro features a unique “Island” barrel. The front sight is dovetailed into the barrel instead of the slide, creating additional material on the top of the barrel. So, the increased barrel weight combined with the reduction in slide weight means less recoil, and faster cycling with more accurate follow up shots. The cuts also improve barrel to slide lockup meaning increased accuracy as well. The Apeiro’s slide is stainless steel and features the Sabre-Tooth cuts. CeraKote™ is first applied to the entire slide and the fats are then polished to give it a more durable and attractive two-tone look.



  • Stainless Steel Slide and Long Wide-Frame
  • Lighter Slide for Less Forward Recoil
  • Island BBL Makes for Tighter Slide to Barrel Fit
  • STI Recoil Master Guide-Rod
  • Oversized Magwell
  • Ribbed BBL Creates Better Sight Picture
  • Fiber Optic Front Sight; Adjustable Rear Sight
  • Ambidextrous Safety
  • 45oz
Specs - More Info
Additional Info
SKU 10-280024
UPC Code 68946630446
Caliber .40 S&W
Manufacturer STI
Overall Length 8.69 in
Sights (detailed) Dawson Fiber Optic Front (.100), STI Adjustable Rear
Weight Empty 38.7 oz
Grips STI 2011 Glass Filled Polymer Modular (Black) with STI Stainless Magwell
Frame Material STI Modular Steel 2011 (Long Wide)
Barrel Length (in) 5.01 in
Mag Capacity / Rounds 14rd
Number of Mags 1
Accessory Rail No
Magazine Well Yes
FFL Requirements All firearms must be shipped to a Federal Firearms License (FFL) holder. We cannot and will not ship firearms to anyone but a FFL. We must receive the receiving dealer's FFL by fax (314-558-8429) or email ([email protected]).
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