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Geissele Reaction Rod for Upper Receivers

Geissele Reaction Rod for Upper Receivers

Availability: In stock




The Geissele Reaction Rod is a tool that securely holds an upper receiver assembly for maintenance and assembly work. It will make working on an AR15 or M4 carbine a dream. The removal and installation of barrels, flash hiders, gas blocks and hand guards is made much easier and simpler. The Reaction Rod is designed to be gripped in a bench vise so that the rod is either horizontal or vertical. The upper receiver is then slid onto the rod and the rods integral splines enter the barrel extension and secure the barrel extension from turning. This allows all the torque from barrel nut wrenches to go directly into the barrel extension. In contrast, receiver vise blocks transmit the turning force into the aluminum receiver, a good part of which passes through the small, easily distorted receiver index pin. With the Geissele Reaction Rod, marring of an upper receivers finish by gripping and twisting inside vise blocks is eliminated and so is the need to remove sights and mounts from the receivers M1913 rail.

Additional Info

Additional Info

SKU 10-169
Manufacturer Geissele
Finish No
Barrel Length No
Caliber No
Configuration No
Option No
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No


Customer Reviews (4)

No commentReview by
Excellent tool for mounting barrels and handguards. (Posted on 3/14/2017)
A must for every builder Review by
This thing is awesome. It has one job and does it well. So simple to use. I used it to remove a barrel I torqued on 4 years ago at 80 ft lbs. Came right off. Buy once cry once. (Posted on 11/10/2016)
No commentReview by
- (Posted on 9/23/2016)
Must have tool, in my opinionReview by
Although this tool is expensive, it is well worth it in my opinion. Maybe not if you're only going to build 1 AR15, but where's the fun in that... This eliminates the chance that you will warp, break, or incorrectly torque spec the barrel onto the upper receiver. Also makes for installing a muzzle device easier, and again allows you to correctly torque it without question. Check out the YouTube videos of this to see what I mean. (Posted on 4/18/2016)

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