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GU-37 Kit - 37mm Signaling Device
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  • GU-37 Kit - 37mm Signaling Device
  • GU-37 Kit - 37mm Signaling Device

GU-37 Kit - 37mm Signaling Device

$69.99
$62.99 Save 10%

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:

  • Kit does not ship to NJ or International.

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
9mm OD, 3.2 ID Washer 1
m3x30mm stainless steel rod 2
ar15 magazine catch spring 2
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

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