Over 300,000 customers - we say thank you!

40,000+ products for hunting and shooting sports

GEISSELE AUTOMATICS
AR-15/M4 REACTION BLOCK

854014005984 100016578
The Geissele Reaction Block is designed to aid in the assembly of lower receivers. Once the armorer has installed the buffer tube onto the lower; the buffer tube and lower receiver assembly can be slid into the Reaction Block at the 12, 3, 6 and 9 o’clock positions. This allows the armorer to rotate the lower in 90 degree increments in the block simply by loosening the provided nylon screws, removing the lower, and sliding it back in at the desired orientation. The Reaction Block provides an ultra-stable platform for performing an array of lower receiver operations, as well as making the installation of the buffer retainer nut quick and easy. All while keeping both hands of the armorer free to work, saving both time and frustration.
254.9 254.9 1 GBP
Product no.: 100016578
GEISSELE AUTOMATICS AR-15/M4 REACTION BLOCK(MIL-SPEC BUFFER TUBE ONLY)
Mfr Part: 05-314 854014005984 The Geissele Reaction Block is designed to aid in the assembly of lower receivers. Once the armorer has installed the buffer tube onto the lower; the buffer tube and lower receiver assembly can be slid into the Reaction Block at the 12, 3, 6 and 9 o’clock positions. This allows the armorer to rotate the lower in 90 degree increments in the block simply by loosening the provided nylon screws, removing the lower, and sliding it back in at the desired orientation. The Reaction Block provides an ultra-stable platform for performing an array of lower receiver operations, as well as making the installation of the buffer retainer nut quick and easy. All while keeping both hands of the armorer free to work, saving both time and frustration.
254.9 GBP 1 £254.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Make: AR-15

Top takeaways

  1. The Geissele Reaction Block is specifically designed for assembling AR-15 lower receivers with MIL-SPEC buffer tubes.
  2. It allows the lower receiver to be rotated in 90-degree increments for ease of access by simply adjusting the nylon screws.
  3. Provides a stable platform for lower receiver operations and simplifies the installation of the buffer retainer nut.

Attributes

Make: AR-15 Delivery weight: 0.703kg Shipping height: 76mm Shipping width: 121mm Shipping length: 203mm UPC : 854014005984

Item details

Made in USA



Upgrade your AR-15 assembly with the Geissele Reaction Block! 🛠️ Enjoy a stable platform for easy buffer tube installation and lower receiver operations.

The Geissele Reaction Block is designed to aid in the assembly of lower receivers. Once the armorer has installed the buffer tube onto the lower; the buffer tube and lower receiver assembly can be slid into the Reaction Block at the 12, 3, 6 and 9 o’clock positions. This allows the armorer to rotate the lower in 90 degree increments in the block simply by loosening the provided nylon screws, removing the lower, and sliding it back in at the desired orientation. The Reaction Block provides an ultra-stable platform for performing an array of lower receiver operations, as well as making the installation of the buffer retainer nut quick and easy. All while keeping both hands of the armorer free to work, saving both time and frustration.
3.6
In stock
£64.90 £27.90 - £64.90
4.3
Reordered
£174.90 £25.90 - £174.90
3.7
In stock
£21.90 £15.90 - £74.90
Back to top