MP5 Automatic (late beta) – Shellington Blasters

To use the blaster, first load in the magazine and chamber the first round. This can be done by either pulling back and releasing the rear or forward charging handles. Make sure the slide is released quickly, as a slow release may fail to charge the bolt into battery.

Then pull the 2 stage trigger to first rev the flywheels and then to begin firing the blaster. At lower fps cage options, it becomes essential to rev the flywheels up to speed prior to firing.

In the case of a jam, remove the magazine to clear the shells before reinserting the magazine and repeating the steps.

To use the HK slap, we must first understand what it’s for. In the real steel version on the MP5, the HK slap was designed to give the operator a more secured way of successfully chambering a round when loading a new magazine into the firearm.

For the nerf version, it serves a similar purpose. Though its primary purpose is just because it’s fun. So to use the HK slap, you should first be either completely out of darts in the magazine, or have no magazine currently inserted in the blaster.

Then you pull the charging handle back and then up into the locked position.

Once the magazine has been inserted, you can now perform the iconic slap to unlock the handle and bring the bolt into battery to chamber the first round from the magazine.

While you can perform the slap with rounds left in the blaster, you will be ejecting an unspent round from your blaster, wasting the round. But it’s often worth it for the rule of cool alone.

Beta here typically means the blaster is not 100% ready for official release. In this case, we’re primarily working on improving the ease of building these in our shop while also improving build quality and quality of life things. However, the blaster in its current state is already firing quite well, or as well as you see in the videos typically. There’s good cycling, shot grouping and accuracy, and the feeding and ejection systems are working quite well.

The primary concerns to take into account when ordering while still in beta now is the extended wait times.

Unfortunately there is no fire control group present here. Part of the reason is we wanted it to be relatively more affordable instead of investing into a base model with fire control. But honestly, the blaster works well enough in a type of short burst mode anyways. But a fire control group is something we’re looking into adding to the shop in the future.

Currently the blaster has cycling issues at 3S, so we do not recommend using one. What this means is that the blaster could fall into runaway and just keep firing forever due to the fire controller not being capable of handling the higher voltage of the 3S battery. This is also something we’re working on, as 3S would improve both the rate of fire and the muzzle velocity of the blaster.

Drum magazines are out of my scope at this time, but I don’t see why it wouldn’t work. The blaster does already work quite well with its 21 round double stacked magazine, so maybe having a 50 round drum magazine would be viable.