Airsoft M72 LAW rocket launcher

Step 7 Assembling the outer tube and inner tube together

REMOVE the ABS/PVC pipe from inside the fiberglass tube.

Decide how much travel you want the inside tube to have when you extended your LAW launcher. I decided for mine it would be a 5 inch travel.

I marked five inches on the side of the fiberglass tube. Make sure the two points are parallel to the lenght of the tube.

Make sure to remove the abs/pvc pipe.

Drill out the marks.

Draw a line between the hole you just drilled in the fiberglass and cut out a channel with a dremel tool. Watch out for fiberglass dust. it itches and you should not get it in your eyes or breath it. Wear long sleeves, goggles and a mask.

Picture #3: Insert the ABS/PVC pipe back in the fiberglass tube with the COUPLER ATTACHED. Drill a hole in the ABS pipe at the front portion of the channel you just dremeled out.

Picture #4: Put a screw in the hole. Now the pipe will only move forward and backward a predetermined amount (mine is 5 inch travel)and the inside tube will not rotate.

Comments

[gnazaire]

Is there any substitute to fiber glass???

[MrTinkerer]

carbon fiber

[theRx]

If we wanted to go for carbon fiber, what would you recommend? Multiple layers like you did with the fiber glass? Single layer with a thicker sheet? I understand that using the fiber will probably make the build more expensive no matter what, but I'm just trying to minimize cost while making the outer tube (hopefully) more durable.

[MrTinkerer]

Fiberglass will be significantly less expensive even if you did 5-6 layers. Fiberglass is very strong even with 2 layers.

[tinovw]

Why the fiberglass bro? Is it necessary, because i can only get 8 0z. Hit me up if thats a difference, I live in germany so yeah. Thanks, and by the way, excellent work.

[MrTinkerer]

8oz fiberglass is fine. I chose fiberglass because i needed to fabricate a strong, snug, outer tube.