About Phase 5 Builders Bin

Due to an Overwhelming number of requests from small companies and serious AR15 builders, Phase 5 Weapon Systems Inc.® is Proud to introduce our newest Web Division!

The Phase 5 Builders’ Bin™

In this popular Phase 5 Web Division you will have access to our personal inventory and stash of OEM parts, OEM repair parts and hard to find small spare components that you can never have enough of. This Division will constantly rotate new relevant components in and out of the Builders’ Bin based on ability to offer the parts when we have a sufficient amount of the (part/parts) machined and in the parts bin. We hope that you will find these parts and their availability extremely helpful!
 
Phase 5 // A2 Rifle Receiver Extension Tube
A2 Rifle Receiver Extension Tube

$21.99

   
Commercial Six Position Rifle Receiver Extension Tube
Commercial Six Position Rifle Receiver Ext...

$19.99

   
6In Foam Pad
AR15 6 Inch Pistol Buffer Tube Foam Pad/Cover

$10.00

 
 
Seal 1 CLP PLUS PASTE
Seal 1™ CLP PLUS® Paste

$10.49

   
Seal 1™ CLP PLUS® Liquid
Seal 1™ CLP PLUS® Liquid

$13.49

   
Seal 1™ CLP PLUS® Liquid Aerosol Can
Seal 1™ CLP PLUS® Liquid Aerosol Can

$22.75

 
 
Phase 5 // Crows Foot Wrench 1 - 1/8"
Crows Foot Wrench 1 - 1/8"

$19.99

   
Phase 5 // AR15 Fire Control Group
AR15 Fire Control Group

$35.99

   
Phase 5 // .308 Bolt Catch Screw
.308 Bolt Catch Screw

$5.99

 
 
Phase 5 // Buffer retainer Cap and Spring
Buffer Retainer Cap and Spring

$2.00

   
Phase 5 // Safety Selector Spring and Detent
Safety Selector Spring and Detent

$2.00

   
Phase 5 // Bolt Catch Plunger/ Rollpin/ Spring
Bolt Catch Plunger/ Rollpin/ Spring

$3.00

 
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