Nerf Grenade Mod and tutorial

I have put together my interpretation of a Nerf Grenade. It is easy to make but a little expensive, around $50 all in. It uses Green Gas and an airsoft grenade shell for propulsion.\r
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Items you will need:\r
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-PVC 40 Sched.\r
• 2” Coupler\r
• 2” slip cap\r
• 2” slip cap with 1.5” (threads inside)\r
• 1.5” Threaded Cap\r
• PVC is from Lowes\r
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-¼” Aluminum rod \r
-2 – 1” key rings\r
-1 pack of 1/16” x ¾” Cotter Pins\r
-1 pack of 3/32” x 1” Cotter Pins\r
-3/8” Vinyl tubing \r
-Craft foam \r
-Spring out of multi pack from Homedepot\r
-PVC adhesive (I used Goop E600)\r
-Darts (Sadly the add ended but these should work) search on eBay\r
100pcs 7.2cm Blue Foam Darts for Nerf N-strike Elite Series Blasters Toy gun F\r
Seller: bestshop755\r
-Cord Grip (McMaster-Carr) 69915k51\r
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-Grenade Shell \r
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Tools:\r
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-Drill \r
-Drill bits \r
• 3/32 for the holes in the timer bar\r
• 5/8 (wood holes bit) for the cord grip\r
• 15/64 for the dart holes\r
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-Sanding tool to thin aluminum shaft\r
-Hot glue gun\r
-Measuring tape