The Rock Island Armory TAC Ultra FS is a 1911-style semi-automatic pistol chambered in .45 ACP with a 5-inch barrel and an 8-round capacity. It has Novak sights and a black finish. The platform is built on the M1911 A1 frame with polymer-compatible features drawn from Rock Island's TAC line. 
 

Key Specifications 

• Brand: Rock Island Armory 
• Model: TAC Ultra FS 
• Caliber: .45 ACP 
• Action: Semi Auto 
• Capacity: 8 rounds 
• Barrel Length: 5 in 
• Color/Finish: Black 
   

Detailed Features 

• 5-inch barrel on a full-size 1911 frame 
• Novak-style sights 
• 8-round magazine capacity 
• Black finish throughout 
• M1911 A1 pattern receiver

Owners of the Rock Island Armory TAC Ultra FS in .45 ACP tend to praise its value relative to other 1911-pattern pistols. The fit and finish are considered solid for the price point, and most report reliable cycling with standard .45 ACP loads out of the box. Some note minor rough edges on the internals that smooth out with use.

The Novak sights get consistent approval for their usability, and the full-size frame is comfortable for extended range sessions. Shooters with larger hands prefer this configuration over compact 1911 variants. The trigger pull is workable but divides opinion, with some finding it adequate and others swapping it early.

On value, the TAC Ultra FS is often cited as a practical entry into the 1911 platform without the premium cost. The common critique is fit consistency between individual units, which can vary more than on higher-priced competitors. Overall the platform has a loyal following among 1911 shooters on a budget.