The Dickinson LLC Adam 1911 Rainbow is a full-size 1911-style semi-automatic pistol chambered in .45 ACP. It has a 5-inch steel barrel, a single-action-only trigger, and an 8+1 magazine capacity. The frame and slide are forged, CNC-machined steel finished in a polished rainbow PVD coating. 
 

Key Specifications 

• Brand: Dickinson LLC 
• Model: Adam 1911 
• Caliber: .45 ACP 
• Action: Single Action Only 
• Capacity: 8+1 
• Barrel Length: 5 inches 
• Frame Material: Steel 
• Slide Finish: Polished Rainbow PVD 
• Weight: 2.43 lbs 
   

Detailed Features 

• Steel frame with an integrated beavertail for a higher, more secure grip. 
• Slide carries B-style serrations front and rear for a sure grip when racking. 
• Thumb safety controls the single-action trigger. 
• Forged steel frame and barrel with a CNC-machined slide. 
• Rainbow PVD coating covers both frame and slide in a polished finish.

Owners of the Adam 1911 line generally like the fit of the forged steel frame and slide, describing the tolerances as tight for the price point. As with most 1911 pattern guns, a break-in period is common, and a handful of owners on newer production runs mention needing to work through initial feeding hiccups before the gun settles in.

The full-size grip and beavertail on the Adam 1911 draw praise for comfort during range sessions, and the thumb safety is easy to reach. Being a full-size steel 1911, it rides heavier than a polymer carry gun, so most owners treat it as a range or home-defense pistol rather than an everyday concealed carry piece.

Because the 1911 pattern is so widely supported, owners like being able to source drop-in grips, sights, and springs without hunting for a proprietary part. The rainbow PVD finish is polarizing: some buyers pick the Adam 1911 specifically for the look, while others say they would rather have it in a more understated finish for durability reasons.