SRM Arms 18.5" Model 1216 Semi-Automatic 12 Gauge Shotgun 3" Chamber - FDE

Manufactured by SRM Arms
Manufactured by SRM Arms
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Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal-Firearm License holder.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to



Companies have been trying to increase the capacity of shotguns for many years. One creation was the rotary mag tube that bolts onto your standard shotgun but brings problems like reliability and weight near the muzzle. The SRM Arms 1216 fixes those problems by designing the shotgun around the rotary mag tube instead of the other way around. Because of the compact design of the reinforced polymer receiver, they can bring the quad mag tube closer to the center of gravity making it much easier to hold. The quad mag tube can hold up to 16 rounds of 3-inch shotgun shells and can be quickly rotated with the push of a button and self feeds when rotated onto an empty chamber. The magazine can even be detached to make reloading faster and easier. The semi-automatic 12-gauge is driven by a roller delayed blow back action that increases cyclic rate while reducing felt recoil. This innovative, compact design is a serious force multiplier for home defense and law enforcement use.

  • High capacity, quad tube, detachable magazine
  • Compact, flat dark earth reinforced polymer stock
  • 18.5-inch barrel
  • 33.75-inch overall length
  • 12.25-inch length of pull
  • Semi-automatic roller delayed blow back operating system
  • Magazine self-loads a round when rotated onto an empty chamber
  • Integrated picatinny top rail and three-sided handguard
  • Easy pushpin disassembly
  • Ambidextrous receiver and controls
  • Fluted chamber to aid in extraction

This model comes with an 18.5-inch barrel and a flat dark earth stock to decrease reflectivity. Even though it is a full-length barrel, the stock is designed to be as compact as possible making the overall length only 33.75 inches. The stock also comes with a three-sided picatinny rail so you can attach your favorite optics, lights, lasers, and other accessories to further your tactical advantage. The stock disassembles easily with its pushpin and break open design so that you can quickly clean and maintain your firearm so that it will be ready at a moment’s notice. The receiver is designed with left-hand operators in mind and can be quickly converted to accommodate them. The enhanced ergonomics pistol grip is designed for fast weapon manipulation and is comfortable to hold.

SRM Arms is a small arms manufacturer that specializes in shotguns and shotgun components designed with tactical solutions in mind for civilian, law enforcement, and military use. They have commercialized products like the Sure Cycle action system, Terror chokes, magazine upgrades and extensions. SRM was awarded a research and development contract in 2010 by the United States Marine Corps to fix design and performance issues with their current semi-auto shotgun. SRM has used this knowledge to bring highly innovative and reliable semi-automatic shotguns to the market for everyone to enjoy.
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Barrel Length18.5
BrandSRM Arms
Caliber Gauge12 Gauge
ChokeCylinder Bore
ColorFlat Dark Earth
HandguardIntegral Forend
Length of Pull12.25 in.
Magazine Capacity16
Muzzle DeviceBare Muzzle
SightsM1913 Picatinny Rail
StockFixed Synthetic Stock
Thread PatternUnthreaded
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

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