{"id":2046,"date":"2026-03-11T08:18:56","date_gmt":"2026-03-11T08:18:56","guid":{"rendered":"https:\/\/tactical-dailynews.com\/?p=2046"},"modified":"2026-03-11T08:18:58","modified_gmt":"2026-03-11T08:18:58","slug":"as-designs-super-safety-mp5-lower-making-haste","status":"publish","type":"post","link":"https:\/\/tactical-dailynews.com\/?p=2046","title":{"rendered":"AS Designs Super Safety MP5 Lower: Making Haste"},"content":{"rendered":"
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I hit the range with AS Designs\u2019 ARC-Fire Super Safety MP5 lower to see just how fast a semi-auto can go.<\/strong><\/h2>\n

If you haven\u2019t heard of the Super Safety by now, you\u2019ve been living under a rock. The clever little gadget is capable of massively increasing a gun\u2019s fire rate while still meeting the legal definition of semi-automatic, i.e., one round fired per pull of the trigger. More on that later.<\/p>\n

All you need to know is that they\u2019re federally legal at the time of writing and, if you own an MP5, there\u2019s not a single better upgrade you could get for it than AS Designs<\/a>\u2019 Super Safety MP5 lower.<\/p>\n

AS Designs Super Safety MP5 Lower<\/strong><\/h2>\n

You may be asking yourself, why do you need a whole new MP5 lower? Aren\u2019t Super Safeties just triggers? They are triggers, but they\u2019re AR-pattern triggers, meaning to run in an MP5 you\u2019ll need a redesigned lower to accommodate one.<\/p>\n

While this is an added expense, the upside is that it also massively improves the ergonomics and trigger feel of the MP5.<\/p>\n

I only got on board the MP5 train relatively recently, but I absolutely love the platform now. My AP5SD<\/a> quickly became my favorite gun to shoot. Right off the bat, though, I felt it was lacking in certain departments. AS Designs\u2019 MP5 lower fixes all of them.<\/p>\n

Firstly, it\u2019s compatible with standard AR grips and therefore provides familiar AR ergonomics. Secondly, because it now uses an AR trigger, even if you were only using it in standard semi-auto mode, it would still be a major improvement over the original notoriously long and mushy MP5 trigger. AS Designs\u2019 MP5 lower can even accept a ton of great aftermarket trigger options, but I found the mil-spec trigger in mine to be more than adequate.<\/p>\n

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The AS Designs MP5 lower and Slip Trip, everything you need to make your MP5 Super Safe.<\/figcaption><\/figure>\n

Finally, the MP5 was simply born to go fast, and like most PCCs, it feels absolutely neutered when limited to standard semi-auto fire. Thankfully, the increased fire rate of the Super Safety semi-auto mode remedies that.<\/p>\n

To reiterate how Super Safeties work, each shot fired requires its own independent trigger press. The trigger is just being forcefully reset at such a high speed that you don\u2019t consciously notice that it\u2019s happening when firing. Slow-motion camera footage reveals the truth, but when you\u2019re behind the gun, it feels like the real deal.<\/p>\n

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Yes, I really need to clean it.<\/figcaption><\/figure>\n

ARC-Fire<\/strong><\/h2>\n

I\u2019ve been referring to the AS Designs trigger in my AP5SD as a Super Safety, but technically, the version I\u2019ve been testing is the company\u2019s ARC-Fire model. The difference? Instead of a 3-position push-button safety, it uses a standard 3-position AR selector. Not only is that an improvement over the original Super Safety design, but also a big upgrade over the MP5\u2019s original stiff and hard-to-reach selector.\u00a0<\/p>\n

\"arc-fire\"arc-fire<\/figure>\n

Buying the ARC-Fire version of the MP5 lower is $100 more than the standard Super Safety version, but I think it\u2019s well worth it.<\/p>\n

Is This Legal?<\/strong><\/h2>\n

Yes, at the time of writing, Super Safeties and other similar fire rate-enhancing products that forcefully reset the trigger between each shot are legal. I can\u2019t spell it out as clearly as AS Designs does, so here\u2019s the company\u2019s answer to the question straight from their website:<\/p>\n