Hooper Gun Works 1911 5″ Full Size GI Builder’s Kit 40 S&W Ramped – RIA Slide and Barrel


Out of stock

SKU: HGW-Kit40GI Categories: , ,


Build your own series 70 1911 with this Hooper Gun Works 1911 GI Builder’s Kit in 40 S&W!

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:

  • This slide comes with GI serrations and GI sights. Sights are pre-installed to the slide. Featuring a parkerized finish.
  • This is a 40 S&W caliber kit utilizing a clark/para/lissner ramped BULL barrel which is also parkerized
  • Bull barrels use a reverse plug instead of the traditional guide rod plug and barrel bushing.
  • Includes a complete set of 1911 40 S&W small parts

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

  • Rock Island Armory GI Slide
  • Rock Island Armory Barrel, link & pin (pre-installed)
  • HGW Composite grips — Using Markforged 3D printed Continuous strand fiberglass within an Onyx base
    -Ultra lightweight and engineered stiffness where needed
    -The continuous strand fiberglass spares no expense when making fine 1911 grips
    -Just the right amount of texturing from 3D process
  • Pins (hammer, firing, thumb safety…)
  • Grip screws & bushings
  • Springs (recoil, firing pin…)
  • Complete mainspring housing
  • Safeties (grip, thumb)
  • Full Length Guide Rod with Takedown Hole
  • 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.

*Ships USPS Priority Mail

Additional information

Weight 32 oz
Dimensions 9 × 6 × 2 in




.40 S&W


For Gun Make