ISSC MK22 ISSC211000 22 LR

The ISSC MK22 showed ongoing failures to feed and extract. The blems on the sides of the receiver put us off. There’s just not much to like here, so we’d stay away.

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GUN TESTS GRADE: F

$270

If you’re looking for a SCAR and the RX22 doesn’t suit your fancy, another company imports a SCAR replica in 22 LR. Let’s see what our testers thought of it.

The ISSC MK22 appears to be a clone of the Anschütz RX22. With an MSRP of $665, the MK22 could be found at CDNN Sports (CDNNSports.com) on sale for $300. The rifle has the same weight, configuration and controls as the RX22. While our rifle at first seemed to have the same black finish as the RX22, the ISSC MK22 finish quickly started to bubble and peel off in multiple locations.

Our testers had the same complaints about the rifle’s comfort with open sights. While the buttpad stayed on the rifle, the base plate of the pistol grip came off a couple of times. Interestingly, while the RX22 would fire without the magazine, the ISSC MK22 would not fire without a magazine. Some of the testers thought this was a good feature in a training rifle. The magazines are identical for both rifles. They are easy to load, drop freely, and hold the bolt open when empty. Some of our testers found the magazine difficult to reload as it would not also seat or lock in very well.

Action TypeBlowback semi-auto, aluminum upper, polymer lower
Overall Length32.4 to 33.9 in.
Overall Height w/o Scope7.9 in.
Maximum Width1.4 in.
Weight Unloaded6.94 lbs.
Magazine Capacity10, 22; plastic box with thumb assist
Barrel16.5 in. long; 1:16.5 twist; black carbon steel
Buttstock Black polymer, 2-position comb, 3-position length; rubber buttplate
Stock Length of Pull12.375 to 13.875 in.
Fore-endAluminum quad rail
Trigger5.7 lbs.; two stage
Safety Style2 position, safe down, ambidextrous
Magazine Release StyleButton, ambidextrous
Front Sight Post with dot; elevation adj.
Rear Sight Peep, two dot; elevation and windage adj.
Sight Radius16.9 in.
Receiver Optic TreatmentPicatinny rail
WarrantyNone
Telephone(205) 655-7500
WebsiteNA
Country of ManufactureAustria

The bolt on our example was mounted on the left side. Some of our testers liked that because it allowed the off hand to manipulate the bolt without altering the firing grip. You can transfer the bolt handle to the other side if that is your preference. The safety was easier to use on the MK22 than the RX22. The trigger on the ISSC was actually judged to be superior to the Anschütz. While slightly heavier at 5.9 pounds and demonstrating the same spongy release and excessive overtravel, the two-stage trigger was easier to use, with much lighter take-up.

Formal accuracy testing proved to be a great challenge. The ISSC MK22 frequently experienced failures to feed and extract. Since we had the same results with three different magazines and all three brands of ammo, the testers concluded that the fault was with our rifle. The fact that none of the magazines would seat or lock up securely might indicate an issue with the magazine interface on our particular rifle. However, further research indicated that these problems are common with the model. In fact, the only brand of ammo we were able to get to work consistently enough to reliably test was the Federal 40-grain roundnose. We eventually squeezed out three groups that averaged a solid 0.9 inch. Two other groups were larger, but were disqualified due to functional difficulties. We only got two groups out of the Winchester 36-grain hollow points: one was 1.71 inches and the other was 0.82 inches. We never were able to produce a group out of our rifle with the Aguila 40-grain roundnose. Bottom line is that our example of the ISSC MK22 was not able to meet our testing protocols.

Our Team Said: Despite hope that we would find a quality SCAR replica, our testers found very little to like about the ISSC MK22. There were problems with the fit (pistol grip), finish, and reliability. The ISSC MK22 got one tester so angry that she said she would not pay a dollar for it. The frustration was real and prevented anyone from having any fun with the rifle. If a rifle like this isn’t fun, then it simply is not worth buying.

Written and photographed by David Tannahill, using evaluations from Gun Tests team testers.

22 LR Range Data

We averaged the results from five five-shot groups for accuracy. We recorded velocity with a Magnaspeed V3 Chronograph (SKU 628777, MidwayUSA.com, $380) at the muzzle. Temperature at the time of testing ranged from 70 to 75 degrees. All groups were fired indoors at 25 yards from a bench with a sandbag. Location: Boyert Shooting Centers in Katy, Texas (Boyert.com). Ammo source: Academy Sports and Outdoors.
Aguila 40-grain Round NoseWalther Arms HK416Anschütz RX22ISSC MK22 Smith & Wesson M&P 15-22
Average Velocity1110 fps1164 fps1151 fps1066 fps
Muzzle Energy109 ft.-lbs.120 ft.-lbs.115 ft.-lbs.101 ft.-lbs.
Smallest Group0.9 in.0.7 in.N/A in.0.5 in.
Average Group1.1 in.1.0 in.N/A in.0.9 in.
Federal 40-grain Round NoseWalther Arms HK416Anschütz RX22ISSC MK22Smith & Wesson M&P 15-22
Average Velocity1130 fps1170 fps1184 fps1105 fps
Muzzle Energy113 ft.-lbs.122 ft.-lbs.124 ft.-lbs.108 ft.-lbs.
Smallest Group1.2 in.0.9 in.0.6 in.0.9 in.
Average Group1.4 in.1.0 in.0.9 in.1.0 in.
Winchester 36-grain Hollow PointWalther Arms HK416Anschütz RX22ISSC MK22Smith & Wesson M&P 15-22
Average Velocity1251 fps1263 fps1256 fps1242 fps
Muzzle Energy124 ft.-lbs.127 ft.-lbs.126 ft.-lbs.123 ft.-lbs.
Smallest Group1.0 in.0.9 in.0.8 in.0.6 in.
Average Group1.3 in.1.5 in.1.3 in.0.8 in.

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