Great Lakes Firearms Synergy GL-1911DS 9mm, 5-inch, Two-Tone Double-Stack 1911 with Gideon Judge XL Red Dot, 20+1 Capacity
This Great Lakes Firearms Synergy GL-1911DS is a U.S.-made, full-size 9mm double-stack 1911 with a 5-inch Government-length configuration and a two-tone finish. It features a matte black, tri-top slide with lightening windows, a bronze frame with a full-length accessory rail, and an oversize flared magazine well. A Gideon Optics Judge XL red dot is installed; please note the battery compartment tray for the red dot is missing. The slide has a fiber-optic front sight and no rear iron sight on the slide.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The slide and frame show minor scratches and small blemishes visible under close inspection. The battery compartment tray for the installed red dot is missing. There is no rear iron sight on the slide.
What’s Included
- Great Lakes Firearms Synergy GL-1911DS 9mm pistol
- Gideon Optics Judge XL red dot sight (installed; battery tray missing)
- Gideon Optics mounting plate(s) and assorted screws, as shown
- 1x 20-round steel double-stack 1911-DS pattern magazine
The Synergy GL-1911DS pairs a matte black slide with a bronze frame for a purposeful two-tone look. The slide is cut with a tri-top profile, front and rear cocking serrations, and lightening windows. It is marked "SYNERGY" on the slide and "GL-1911DS" / "SPARTA, MI" on the frame.
This model is built on a double-stack 1911 platform in 9mm Luger, offering a 20+1 capacity. It uses a single-action-only operating system with an ambidextrous thumb safety and a beavertail grip safety. The flat, skeletonized trigger and rowel-style hammer round out the fire-control features.
The full-length accessory rail provides multiple Picatinny slots for lights or other rail-mounted accessories. An oversize flared magazine well supports fast magazine changes. The one-piece polymer grip module carries the GLFA logo and directional texturing for a consistent hold.
A Gideon Optics Judge XL red dot is installed for an immediate optic-equipped sight picture; however, the battery compartment tray for the red dot is missing. The slide has a fiber-optic (orange) front sight and no rear iron sight on the slide.




