Home » Shop » RI USA 1911 A1 Tac Ultra 45 Auto 8rd Magazine 5″ Barrel Black Optic Ready

RI USA 1911 A1 Tac Ultra 45 Auto 8rd Magazine 5″ Barrel Black Optic Ready

$698.00

The Rock Island Armory semi-auto pistol is designed for reliable performance in high-stress situations, making it an excellent choice for home defense or personal carry. Chambered in 9mm, this pistol features a smooth action that ensures quick follow-up shots and enhanced accuracy.

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SKU: cssi-go-QB51766AOS Category: Brand:
Description
  • MODEL: 57166AOS
  • CALIBER: .45 ACP
  • ACTION: SEMI – AUTO TILT LOCK
  • CAPACITY: 8+1
  • BARREL LENGTH: 5.05"
  • OVERALL LENGTH: 8.74"
  • OVERALL WIDTH: 1.43"
  • OVERALL HEIGHT: 5.55"
  • FRONT SIGHT: GLOCK
  • SLIDE CUT: AOS OPTIC PLATE SYSTEM
  • REAR SIGHT: GLOCK
  • SAFETY: AMBIDEXTROUS THUMB
  • TRIGGER: ADJUSTABLE TRIGGER PULL 4 – 6 LBS WEIGHT
  • EMPTY: 2.5 LBS
  • FINISH: MANGANESE PHOSPHATE (PARKERIZED)
  • STOCK: G10 GRIPS
  • MAGWELL: YES
  • RIFLING TWIST: 1:16"
  • NO. OF GROOVES: 6
Additional information
Weight4.400 lbs
Dimensions12.500 × 10.500 × 2.500 in
ManufacturerRock Island – USA
Barrel Length5″
Capacity8 + 1
ActionSingle Action
FinishBlack Parkerized
Overall Length8.74″
Frame MaterialSteel
Caliber45 ACP
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Shipping and Delivery

PROCESSING & SHIPPING

Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.

FIREARM TRANSFERS

  • Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
  • Your receiving FFL will need to email their license to [email protected] before we can ship.
  • Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.

You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.