Builds/Buffer Tube Assembly
AR builds with the Geissele AR15/M4 Reaction Block
5 public builds on GunPartPicker use the Geissele AR15/M4 Reaction Block. At today's lowest prices the median parts list comes to $4,039, and most land between $2,532 and $5,524. The most common caliber is 5.56 NATO.
Public builds
5
Median parts total
$4,039
Typical range
$2,532 to $5,524
Top caliber
5.56 NATO
Most chosen parts in builds with the Geissele AR15/M4 Reaction Block
| Slot | Most chosen | Share |
|---|---|---|
| Muzzle Device | Zev Technologies 5.56 Muzzle Devicebuilds | 40% of 5 |
| Bolt Catch | Phase 5 Version 2 Extended Bolt Releasebuilds | 40% of 5 |
| Takedown Pin | Forward Controls Design Extended Takedown Pinsbuilds | 40% of 5 |
| Buffer Spring | Expo Arms AR-15 Carbine Buffer Springbuilds | 40% of 5 |
| Trigger Guard | Strike Industries Cobra Billet Aluminum Trigger Guardbuilds | 40% of 5 |
| Forward Assist | Radian Forward Assistbuilds | 50% of 4 |
| End Plate | Fortis Lightweight Enhanced AR-15 End Platebuilds | 50% of 4 |
Brands these builds pair with
Builds with the Geissele AR15/M4 Reaction Block
Frequently asked questions
How many builds use the Geissele AR15/M4 Reaction Block?
5 public builds in the GunPartPicker build gallery include the Geissele AR15/M4 Reaction Block.
How much does a build with the Geissele AR15/M4 Reaction Block cost?
The median parts list is $4,039, with most between $2,532 and $5,524, using each part's lowest in stock price today. Open any build for store by store prices.
What parts go with the Geissele AR15/M4 Reaction Block?
Zev Technologies 5.56 Muzzle Device is the most chosen muzzle device (40% of builds with one); Phase 5 Version 2 Extended Bolt Release is the most chosen bolt catch (40% of builds with one); Forward Controls Design Extended Takedown Pins is the most chosen takedown pin (40% of builds with one); Expo Arms AR-15 Carbine Buffer Spring is the most chosen buffer spring (40% of builds with one).
Build totals add up each part's lowest in stock price, refreshed every few hours; open a build for prices at every store. Want your own? Start an AR-15, AR-10 or AR-9 build.