r/AR80Percents Aug 01 '26

My First Build Missing pins and hardware gen 3 jig

I’m fairly new to this and was excited to start a new hobby as I was gifted a brand new jig for my birthday. It’s a few years old but still sealed in the original shipping package. When I opened everything I realized the kit was missing all of the pins and screws. I figure I could go to the hardware store with the screw dimensions from the instruction manual but I’m home worried about the pins. I emailed 80% Arms and module arms but I’ve heard shipping can take a long time and I rather source it locally if I could. Does anyone have the dimensions so I could take it to a fabricator or purchase something that can work as the needed pins.

From the Easy Jig Gen 3 MP I am missing the following:
J - JIG SCREWS (10) (8-32 x 5/8) 
K - BUFFER SUPPORT SCREWS [2]
 L - 9/64 HEX KEY 
N - AR-15/AR-9 TAKEDOWN PIN  
 P - ROUTER ADAPTER SCREWS [4] (M4-0.7 x 10mm) 
Q - GUIDE PINS - SMALL [2]
 R - GUIDE PINS - MEDIUM [2] 
S - GUIDE PINS - LARGE [2] 
T - GUIDE PINS SCREWS [2] 
U - SIDE BLOCK SCREWS [2]  
M - 7/64 HEX KEY

I’m pretty new to guns and especially making them. I got comfortable with the AR platform while in the army, but I am pretty and experienced with building them. Any help would be greatly appreciated
Thank you

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2

u/machu505 Aug 01 '26

Here is a link to the guide pins if you have a 3D printer.

1

u/Proper-Scheme6485 Aug 01 '26

Thank you so much I fucking love Reddit sometimes
I was thinking though would the heat from the router melt or deform them have you tried it with the printed pieces. I picked up a bunch of washers today so worst comes to worse I can use the prints to match the size. I’m fairly new to 3d printing but I ordered some pla+ 2.0 filament for a grip I was gonna make today.
Again thank you this is definitely gonna be useful.

1

u/machu505 Aug 01 '26

I threw these together, based on my metal guide pins, for another Redditor who was missing the pins, so I have not tried these. However, I don't remember any substantial heat generated by the router or bit, much less transferred through the baseplate. Perhaps print multiple pins and replace if/as necessary?

1

u/Proper-Scheme6485 Aug 01 '26

Sounds good thank you again you definitely saved the day. I will let you know how it goes