My Account (Sign in)
Your basket is empty.
0
Basket
Help and contact
Free standard delivery over £199
100-day return policy
Brownells UK - World's Largest Supplier of Gun Parts, Gunsmith Tools & Shooting Accessories United Kingdom
My Account (Sign in)
Shopping list
(0)
Basket
Newsletter
Sale
Home Gunsmith Tools Rifle Tools Bench & Vise Blocks GEISSELE AUTOMATICS AR-15/M4 REACTION BLOCK

GEISSELE AUTOMATICS
AR-15/M4 REACTION BLOCK

(2)
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.
More...
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 76 £254.90 *
Delivery time approx. 7-14 days.
More than 10 pieces in USA warehouse
Specs: Make: AR-15
Ask question

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

Item details

Made in USA



🔧 Upgrade your AR-15 assembly with the GEISSELE AUTOMATICS LLC Reaction Block! Perfect for stabilizing lower receivers. Rotate with ease & save time. Learn more! 🔩

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.
More...
🔧 Secure your AR-15/M16 during maintenance with Brownells Lower Receiver Vise Block Set! Protects from damage while cleaning or repairing. ✅ Shop now and keep your rifle safe!
BROWNELLS AR-15/M16 ACTION BLOCK & LOWER VISE BLOCK SET
AR-15/M16 LOWER RECEIVER VISE BLOCK
BROWNELLS
In stock
£59.90 * £26.90 - £59.90*
Bench & Vise Blocks
3.6
🔫 Keep your firearms and gear in top shape with BATTLE BORN GREASE by BREAKTHROUGH CLEAN. High-quality, PTFE-fortified lubricant for extreme temps. Get yours now! 🛠️
BREAKTHROUGH CLEAN 10CC SYRINGE GREASE
BATTLE BORN GREASE
BREAKTHROUGH CLEAN
Reordered
£18.90 * £18.90 - £24.90*
Lubricant & Protectant Oils
5
Upgrade your AR-15 with the Odin Works Gen II Extended Magazine Release 🎯 Easy installation, enhanced speed & compatibility with Magpul BAD lever. Get yours now! 🔧🛒
ODIN WORKS INC. AR-15 GEN II EXTENDED MAGAZINE RELEASE BLACK
AR-15 GEN II EXTENDED MAGAZINE RELEASES
ODIN WORKS INC.
Reordered
£32.90 *
Magazine Releases
4
🔨 Get the perfect non-marring punch for your Remington shotgun with the BROWNELLS Nylon/Brass Drift Punch! Ideal for gunsmiths. Shop now! 🔫🛠️
BROWNELLS REMINGTON SHOTGUN NON-MARRING NYLON PUNCH TIP
NYLON/BRASS DRIFT PUNCH
BROWNELLS
Reordered
£13.90 * £9.90 - £37.90*
Shotgun Specialty Tools | Punches
4.5
🛍️ Keep your small parts organized with BROWNELLS Poly Bag Mini Assortment! Perfect for hunters & gunsmiths. Durable, clear storage solution. Get yours now! 🔍✨
BROWNELLS POLY BAG MINI ASSORTMENT
POLY BAGS
BROWNELLS
In stock
£19.90 * £9.90 - £39.90*
Poly Bags
0
Why order from us?
Unrivaled Product Selection

You want it? We got it!

Expert Customer Advice

Via Phone, Chat & Email

US Goods to your doorstep

No customs, no problems

100 days Returns

Shop with a peace of mind

Offers, Promotions & Exclusive Products

Through our weekly newsletter

Shamelessly Honest

We encourage critical product review

Fair Pricing

We pursue a sustainable pricing policy

We won't leave you stranded

Our entire team is made up of passionate gun enthusiasts

 

Site Navigation
Product Categories
Ordering
Customer Service

Welcome!

to Brownells UK, your destination for anything gun related. With our roots in a genuine passion for firearms, we bring you an unmatched selection of Gun Parts, Firearm Accessories, Gunsmithing Tools, Scopes & Red Dot Sights and Expert Knowledge.

Whether you're looking to maintain, repair, or upgrade, we've got what you need!

For Shooters, By Shooters
We share your enthusiasm and know exactly what you're looking for because we're part of the community.

Massive Selection
From the essentials to the unique, find everything under one roof.

Our blend of tradition and innovation
Shop with the convenience of modern technology, backed by a legacy of experience.

Browse our collection and discover why we're the trusted name in shooting sports & hunting.

Brownells Norge - Komplett utvalg av ladeutstyr, våpendeler, kuler, hylser, kikkerter, optikk og luftvåpen Brownells Österreich - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Switzerland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Deutschland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells France - Le plus grand fournisseur d'Accessoires pour le tir, Pièces détachées & Outils d'Armurier Brownells Iberica - El mayor proveedor de accesorios para el Tiro, Piezas y herramientas del armero. Brownells Sverige - Världens största leverantör av Vapendelar, Vapensmide Verktyg & Skyttetillbehör Brownells Suomi Brownells Italia - Il negozio del più grande rivenditore di componenti e accessori per armi da tiro, difesa e caccia Brownells Polska - Największy na świecie dostawca części broni, narzędzi rusznikarskich & akcesoriów strzeleckich Brownells Česko - Největší světový dodavatel součástí zbraní, střeleckého příslušenství a zbrojního nářadí
*
Prices inclusive of duty & VAT.

© 2024 Brownells UK
Part of the Brownells Europe Group

Logo Brownells
Classical view Mobile view