[GAOS 2018] New SRM1228 Shotgun Shoots 12 Ga Aguila Mini Shells

Nicholas C
by Nicholas C

Navy Arms Co makes the SRM1216. It is a semi auto bullpup shotgun that has a 4 tube magazine. At the Great American Outdoor Show, they had their latest version of the SRM shotgun. The SRM1228 is a 12 gauge just like the SRM1216 but it has been modified to shoot 12 gauge Aguila mini shells.

The number in the model name denotes caliber and capacity. The standard SRM1216 has a 4 tubes of four rounds of 2&3/4″ shotgun shells. When you fire the first four rounds, you have to manually rotate the 4 tube cylinder to load the next tube. Because it is manually operated, the SRM shotgun complies with a lot of ban states. The SRM1228 has four tubes and each tube holds seven rounds of mini shells. I have played with Aguila mini shells with my DP12 and found that there is a discrepancy between bird shot and slugs. The slugs have a slightly longer OAL which means you cannot fit as many. In my KSG I could get twelve rounds in each tube with bird shot. But only eleven rounds of slugs were able to fit.

Their latest version of SRM shotguns is the SRM1228. It has been tweaked to run the 12 ga Aguila mini shells. This involved tuning the roller delayed action and shortening the cycling of the bolt.

In the top photo you can the 1228 next to a 1216. The ejection port was made smaller for the mini shells and the bolt only cycles back enough to eject the mini shells.

The price is a bit on the high side as a normal SRM1216 can be purchased for around $1500. SRM is also making a California compliant version. The magazine tube is fixed but can be removed with tools. And since the tubes are rotated manually, it is considered compliant with regards to capacity.

Nicholas C
Nicholas C

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  • Triplanetary Triplanetary on Feb 16, 2018

    Rate of fire is the thing it has going for it.

  • Ed Ed on Feb 18, 2018

    Been out of the loop on these things: how good are the SRM1216 shotguns to begin with? Do they work decently and can become a mainstream thing, or is it just another gimmick?

    • BaconLovingInfidel BaconLovingInfidel on Feb 18, 2018

      @Ed Excellent. It's a roller delayed HK-derived design. I was shocked how light it was, 7 lbs-ish unloaded. The manual rotation of the tube is the only weird part, but they run great. They've got 1212 and 1208 SBRs that get use serious use on high risk warrant service. They're not cheap and I don't kick in doors or encounter zombie hordes often, but it was almost fun enough to make me buy one.

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