Rock Island Armory 1911 4.25″ Mid Size (Commander) Tactical Builder’s Kit 45 ACP


Out of stock

SKU: RIA-45KitMS-26 Categories: , ,


Build your own Commander length series 70 1911 with this Rock Island Armory 1911 Tactical Builder’s Kit in .45 ACP!

Everything pictured is included in this factory packaged kit. Please note that this kit does NOT include a frame or magazine. You’ll need to supply your own frame. We do carry magazines for you to purchase separately.

A few notes from the manufacturer:

  • This slide is completely machined with Novak dovetail sight cuts. Sights are pre-installed to the slide. Featuring a parkerized finish.
  • This is a .45 ACP caliber kit utilizing a non ramped machined bull barrel which is also parkerized
  • Includes a complete set of 1911 .45 ACP small parts sporting a matching parkerized finish.

To list a small sample of the pieces in this kit:

  • 4.25″ Slide (sights pre-installed) mid size / commander length (only works with a bull barrel)
  • Bull Barrel, link & pin (pre-installed) mid size / commander length
  • MS Reverse Plug
  • Rubber grips
  • Pins (hammer, firing…)
  • Grip screws & bushings
  • Springs (recoil, firing pin…)
  • Complete mainspring housing
  • Safeties (grip .250 radius, thumb)
  • Guide Rod
  • Slide Stop
  • Mag release, spring & lock (pre-assembled)
  • And so much more! Browse the pictures for a detailed look.

As this is a builder’s kit, it will require fitting by a qualified gunsmith.

Additional information

Weight 12 oz
Dimensions 9 × 6 × 2 in

Rock Island Armory



.45 ACP