Rock Island Auction Company

Lot 665: Ruger AC-556K Selective Fire Machine Gun

Auction Date: December 3, 2021

Desirable Ruger AC-556K Selective Fire Class III/NFA Fully Transferable Machine Gun

Price Realized:
Estimated Price: $14,000 - $22,500

Desirable Ruger AC-556K Selective Fire Class III/NFA Fully Transferable Machine Gun

Manufacturer: Ruger
Model: AC-556
Type: Machine gun
Gauge: 223
Barrel: 13 inch round
Finish: stainless steel
Stock: hardwood
Item Views: 911
Item Interest: Very Active
Serial Number:
Catalog Page: 388
Class: Class III

Marketed to law enforcement and foreign military clients, the AC-556 family of weapons is the Mini-14 223 caliber rifle configured as a factory original selective fire machine gun. Fitted with a birdcage flash hider, blade and adjustable peep sights and standard receiver markings. The selector switch is positioned on the right rear of the receiver, with positions for semi-automatic, three round burst, and full automatic. Smooth hardwood stock, with vented synthetic upper cover, checkered pistol grip and folding metal buttstock. A soft case is included.

Rating Definition:

Excellent, with mostly bright original stainless steel finish, showing some light scattered scratches on the receiver and the trigger housing and minor handling marks overall. The stock shows mild dents and scratches on the otherwise fine wood, and a small amount of spotting inside the buttplate. Mechanically excellent. NOTE: This weapon is a National Firearms Act (NFA), fully transferable Class 3, which is registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives, (BATFE) under the provisions of 18 U.S.C. Chapter 44 and 27 CFR part 478.

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