GU-37 Kit - 37mm Signaling Device

$69.99

Parts kit for the GU-37. A portion of sales will be donated back to the developer, GoonGunDesigns.

Everything you need to complete the GU37 **Fencepost included!**

Per the GU37 Guide:

Any AR lower receiver will work with the GU-37, however the buffer tube
attachment point must be selected to accommodate the selected bolt system

IMPORTANT:

Barrel Options: Pistol Length - 13.9 cm

Bolt Options: Standard Bolt

Quantity

Quality Assurance

All our Kits are backed by our 100% Quality Guarantee.

Delivery Policy

We ship our products via USPS to save you money.

STANDARD KIT	AMOUNT
m5x5mm cup point set screw	8
m3x6mm cup point screw	1
m5x18mm flat head screw	2
m5 nylock washer	2
m4x25mm Socket Head Screw	2
m4x30mm Socket Head Screw	1
m5x30mm socket head screw	3
[Threaded comment] Your version of Excel allows you to read this threaded comment; however, any edits to it will get removed if the file is opened in a newer version of Excel. Learn more: https://go.microsoft.com/fwlink/?linkid=870924 Comment: unsure of? i put in mcmaster id and this is what came up 9mm OD, 3.2 ID Washer	1
m3x30mm stainless steel rod	2
ar15 magazine catch spring	2
[Threaded comment] Your version of Excel allows you to read this threaded comment; however, any edits to it will get removed if the file is opened in a newer version of Excel. Learn more: https://go.microsoft.com/fwlink/?linkid=870924 Comment: see note on 11 3/8"x40.5mm	1
m5x12mm socket head screw	1
m5x30mm button head cap screw	1
m5 nut	1
m5 nut thin	1
m3 nut	1
m4x16mm socket head screw	2
m3x18.5mm stainless steel rod	1
m3x75mm threaded rod	1
Fencepost	1

BUFFERLESS BOLT	AMOUNT
0.18" OD, 0.13" IDx279.4mm spring	2
M3x173.8mm	3