AR15Accu-Shim AR15 Loose Upper Lower Receivers, Wiggle Wobble AR15 Receiver, Tightening Receivers, NM Black Rifle, How To 3-Gun AR15

 Tightens Receivers Rock Solid Improves Handling Helps Accuracy Slows Wear 

Overview...
An AR15Accu-Shim presses easily into the upper receiver recess located next to the takedown pin lug. The shim supports the sides of the receivers and eliminates slack and wobble. The thickness of the shim is gradually reduced until the takedown pin fits snug for target shooting or reduce thickness more for easy takedown pin removal, either way the receivers will feel tight and right. Installation involves removing rail mounted accessories, tools needed are a screwdriver, pliers and a caliper. 

Will the shim work in your rifle?  
Visually verify the chamber is cleared. Open the receivers, remove the charge handle and bolt carrier group. If present remove the polymer AccuWedge. Lay a blade type .012" automotive feeler gauge across the lower receiver above the safety lever. Close and hold the receivers together firmly. If the takedown pin resists any when pushed or finds resistance passing through the receivers means the shim should work. If the pin goes through the with no resistance means the shim may not work. 

Remedies for receivers that gauge too loose...
Replace pivot and takedown pins measuring under .248" diameter. Upper and lower receiver pin bores should be close to .249" - .250" diameter. Pin bores measuring .250" plus can be fitted with oversize Armalite National Match Pins. Many upper receivers have a takedown pin lug bore that is an approximate .250" x .260" slot machined to align with various lower receivers, check vertical wear. Replace out of spec components and install an AR15Accu-Shim.
.......
.......

Installation Requires Gunsmithing Skills.

  Some Colt Upper Receivers do not have the necessary machined recess/sear relief, click thumbnail.

    

   Includes: Shim, Pin Driver, Aluminum Oxide Strip, Gripper Block, Applicator, Instructions, 50 State USPS Shipping.

$8.95

AR15Accu-Shim™ AR15AccuShim™ Made In USA.
Satisfaction Guaranteed Or Money Back Including USPS Return Shipping Cost.
e-mail: wheeldiamond@netzero.net
  WD Home