Atlas Gunworks EOS 9mm 2011 Compact, 4.25 in Ported Bull Barrel, Trijicon SRO 2.5 MOA, Steel Frame, 15+1
The Atlas Gunworks EOS is a compact, steel-frame 2011 introduced around SHOT Show 2024 and built in Shelburne, Vermont. This example stands out with a 4.25 inch ported, bushingless bull barrel with a flush/recessed crown, a tri-top slide with lightening windows, and Atlas "Perfect Zero" barrel and optic plate markings. It comes with a Trijicon SRO 2.5 MOA red dot installed via the Perfect Zero SRO plate and features a full-length dust cover with a 4-slot Picatinny/M1913 rail. Factory specification lists an approximate 36 oz unloaded weight.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in great shape. There are some superficial scratches and blemishes present. The action cycles smoothly, and the trigger break is crisp.
What's Included
- Atlas Gunworks soft pistol case
- Trijicon SRO 2.5 MOA red dot installed via Perfect Zero SRO plate (SRO2 and Made in USA markings)
- Three 15-round Atlas Gunworks double-stack steel magazines
The EOS uses the proven 2011 platform with a single-action, semi-automatic system and a compact 4.25 inch barrel length. The barrel is bushingless, ported, and finished with a flush/recessed crown, and carries the "Perfect Zero" marking. The tri-top slide includes machined relief cuts and forward/top lightening windows to reduce reciprocating mass.
Controls and ergonomics are purpose-built: a flat-faced, skeletonized, lightened trigger set at approximately 3.0 lb; a skeletonized commander-style hammer; a standard left-side magazine release; and both a manual thumb safety and a grip safety. Aggressive triangular texturing on the grips enhances purchase.
Optics and sights are ready to run: a Trijicon SRO 2.5 MOA red dot is installed on the Atlas Perfect Zero SRO plate, with SRO2 and Made in USA markings noted. A fiber-optic front sight with a red rod provides a bright aiming reference.
The steel frame features a full-length dust cover with a 4-slot Picatinny/M1913 rail for mounting lights. Marked "ATLAS GUNWORKS INC. USA SHELBURNE, VT," this EOS has an approximate factory-spec unloaded weight of 36 oz and a 15+1 capacity using Atlas double-stack steel magazines.




