Colt Custom Competition O1070CS | .45 ACP 5-inch Stainless

The Colt Custom Competition O1070CS is a hand-fit Series 70 1911 built by Colt’s custom shop for precision-oriented shooters. Chambered in .45 ACP and fitted with a 5-inch National Match barrel and Bomar-style adjustable rear sight, it emphasizes consistent performance for competitive and precision range use. The stainless frame with beavertail and black VZ G10 Operator grips provide a firm purchase and corrosion-resistant durability. For a red-dot optic under $1,000 that suits the slide profile and competitive intent, consider a compact micro red dot such as the Holosun 507K.

Product Specifications

• The manufacturer is Colt.
• The model name is Custom Competition.
• The manufacturer part number is O1070CS.
• The caliber is .45 ACP.
• The action is Semi-Auto.
• The barrel measures 5-inch National Match for precision performance.
• The barrel material is Stainless Steel.
• The frame is made from Stainless Steel and includes a beavertail.
• The grips are VZ G10 Operator Grips (Black).
• The sights are a fiber optic front and a Bomar-style adjustable rear.
• The slide is described as a serrated stainless slide.
• The finish is Stainless (brushed/stainless-steel appearance).
• The rate of twist is listed as 1-in-16.
• The overall length is 8.50 inches.
• The UPC is 098289111791.

The Custom Competition is built to deliver a refined, competition-oriented 1911 experience straight from Colt’s custom shop. Its National Match barrel, adjustable rear sight, and textured front strap are intended to support consistent groupings and fast follow-up shots for competitive stages and dedicated range practice. The stainless construction and VZ G10 grips balance durability and control in a package aimed at serious shooters.

Owners commonly praise the pistol’s fit-and-finish and its on-target accuracy, noting the hand-fitting and match-grade components as standout attributes.

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