D-Max Model 100C Carbine .45 ACP Semi-Auto Carbine 16.5” Sten Gun & Mag
SOLD FOR: $1,926.00
LSB#: LSB250825JP009
Make: D-Max, Auburn, Washington, USA
Model: D-Max 100 Carbine
Serial Number: 450C-00575
Year of Manufacture: 1986-1993 / Modern
Caliber: .45 ACP
Action Type: Semi-Automatic, Magazine Fed
Barrel Length: 16.5”
Sights / Optics: The front sight is a blade fixed on the ventilated barrel shroud. The rear sight is a fully adjustable Williams ramp sight mounted to the receiver.
Stock Configuration & Condition: The stocks are 3-piece walnut with a pistol grip, polymer buttplate, and wood handguard. The buttplate is a simple textured polymer unit secured with two screws. The wood shows attractive natural grain with light handling marks, small scuffs, and mild storage wear. There are no chips or cracks. The LOP measures 14 1/4” from the front of the trigger to the rear of the buttplate. Overall, the stocks rate in Fine condition.
Magazine Quantity & Condition: One detachable D-Max .45 ACP magazine is included in Excellent condition.
Type of Finish: Textured black finish on metal components; natural oil-stained hardwood furniture.
Finish Originality: Original
Overall Condition: The carbine retains approximately 95% of its textured black finish. The ventilated barrel shroud, receiver, and magazine housing show only mild edge wear and small marks. The controls are crisp, the markings are clear, and the screws show light tool evidence but remain serviceable. Overall, this rifle rates in Fine condition.
Mechanics: The action functions correctly. The blowback system cycles smoothly and the controls operate as intended. We did not fire this rifle. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements.
Box, Paperwork & Accessories: One magazine.
Our Assessment: D-Max carbines occupy a fascinating niche in the landscape of late-20th-century American pistol-caliber carbines. Built in Auburn, Washington, these rugged .45 ACP semiautos were engineered with simplicity, durability, and controllability in mind—qualities reflected in the heavy ventilated barrel shroud, squared steel receiver, and substantial hardwood furniture. The design carries echoes of the classic Thompson and the simplified WWII M3 “Grease Gun,” yet it remains unmistakably its own creation, developed during a period when small American shops pushed creative solutions into the civilian shooting market. Handling it, there is an unmistakable feeling of purpose: a no-nonsense carbine meant to keep running regardless of conditions.
The .45 ACP chambering situates it within America’s long tradition of heavy-hitting, submachine-gun-class calibers adapted for semiautomatic sporting carbines. From the trenches of WWI through the interwar gangster era and deep into WWII, .45 ACP earned a reputation for authoritative close-range performance, and that lineage is evident here. The weight distribution, blowback action, and extended sight radius combine to create a uniquely soft-handling .45 platform. With its strong retained finish, clean wood, functional mechanics, and distinctive industrial styling, this D-Max carbine stands as an interesting and increasingly uncommon representative of American boutique gunmaking. Please see our photos and good luck on your bid! – L.S.
