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Enhance your AR-15's reliability with the Geissele REK, featuring a stressproof bolt, REBCG, and Nanoweapon coating for superior durability and performance.

GEISSELE AUTOMATICS RELIABILITY ENHANCEMENT KIT H1

817953027028 100039951

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Enhance your AR-15's reliability with the Geissele REK, featuring a stressproof bolt, REBCG, and Nanoweapon coating for superior durability and performance.

RELIABILITY ENHANCEMENT KIT H1

496.15 GBP 0 £496.15 *

Not available

Cartridge: 5.56 mm NATO Finish: Black Make: AR-15 Product no.: 100039951

Not available

496.15 GBP 0 £496.15 *

Enhance your AR-15's reliability with Geissele's REK, featuring a Stressproof Bolt, REBCG, and Nanoweapon coating for superior durability and performance.

RELIABILITY ENHANCEMENT KIT H2

507.31 GBP 0 £507.31 *

Not available

Cartridge: 5.56 mm NATO Finish: Black Make: AR-15 Product no.: 100039952

Not available

507.31 GBP 0 £507.31 *

Upgrade your AR-15 with the Geissele REK H3 for enhanced reliability, featuring a Stressproof Bolt, REBCG, and Nanoweapon coating for superior durability.

RELIABILITY ENHANCEMENT KIT H3

523.14 GBP 0 £523.14 *

Not available

Cartridge: 5.56 mm NATO Finish: Black Make: AR-15 Product no.: 100039953

Not available

523.14 GBP 0 £523.14 *

496.15 523.14 3 GBP

496.15 GBP £496.15

Prices inclusive of duty & VAT.

Product no.: 100039951

Mfr. No.: 05-492-H1

817953027028 AR-15 RELIABILITY ENHANCEMENT KITS The Geissele Reliability Enhancement Kit (REK) includes the Geissele Reliability Enhanced Bolt Carrier Group (REBCG) and the Geissele Super 42 Braided Wire Buffer Spring & Buffer, available in H2 or H3 configuration for 5.56mm AR-15 pattern rifles. The REK represents the culmination of years of extensive testing and fine-tuning to deliver the most reliable operating system upgrade for your carbine. Manufactured in Geissele’s state-of-the-art facility in North Wales, PA, the REBCG is a full-mass, full-auto rated M16/M4 bolt carrier group. The carrier is machined from mil-spec 8620 steel and features a properly torqued and staked, chrome-lined gas key. The cam pin, machined from H13 medical steel, is coated with Nanoweapon (Chrome-Nitride) for maximum corrosion and wear resistance. The extended upper rails on the carrier provide greater stability and dramatically increase feeding reliability. The carrier is also coated with Nanoweapon for added durability. The Geissele Stressproof Bolt, made from Carpenter 158+, is cleaner and stronger than the typical material spec’d by the US Government. Geissele engineers collaborated with Carpenter Steel metallurgists in Reading, PA, to produce this special heat of material. The forged bolt manipulates the metal's grain structure, yielding a bolt capable of five times the life of a mil-spec bolt. Each bolt undergoes rigorous inspection, high pressure testing, magnetic particle inspection, and is coated with Nanoweapon. Nanoweapon, a family of coatings similar to DSL (Durable Solid Lubricant) developed by Picatinny Arsenal (US ARMY ARDEC), is exclusively available from Geissele Automatics. Geissele engineers worked for over three years with the research and development company that collaborated with Picatinny to fine-tune the coating. Nanoweapon provides unparalleled corrosion, wear, and abrasion resistance. Applied at low temperatures, the coating does not affect the part's metallurgy and has a surface hardness equivalent to 82HRC. This hardness allows it to easily reject carbon and facilitate cleaning, enabling normal firearm operation with less lubrication.

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496.15 523.14 3 GBP

Description Specification Customers reviews Accessories

GEISSELE AUTOMATICS RELIABILITY ENHANCEMENT KIT H1

496.15 GBP £496.15

Prices inclusive of duty & VAT.

Is a 'Call to order' product.

Requires order by phone

Description:

Enhance the reliability of your AR-15 with Geissele's cutting-edge kits!

The Geissele Reliability Enhancement Kit (REK) is the ultimate upgrade for your AR-15, designed to ensure superior performance and reliability. This comprehensive kit includes:

Geissele Reliability Enhanced Bolt Carrier Group (REBCG)
Geissele Super 42 Braided Wire Buffer Spring & Buffer (available in H2 or H3 configuration for 5.56mm AR-15 pattern rifles)

Manufactured in Geissele’s state-of-the-art facility in North Wales, PA, the REBCG is a full-mass, full-auto rated M16/M4 bolt carrier group. The carrier is crafted from mil-spec 8620 steel and features a properly torqued and staked, chrome-lined gas key. The cam pin, made from H13 medical steel, is coated with Nanoweapon (Chrome-Nitride) for maximum corrosion and wear resistance.

The extended upper rails on the carrier provide greater stability and significantly enhance feeding reliability. Additionally, the carrier is coated with Nanoweapon for added durability.

The Geissele Stressproof Bolt, made from Carpenter 158+, is cleaner and stronger than the typical material specified by the US Government. Geissele engineers collaborated with Carpenter Steel metallurgists in Reading, PA, to produce this special heat of material. The forged bolt manipulates the metal's grain structure, yielding a bolt capable of five times the life of a mil-spec bolt.

Each bolt undergoes rigorous inspection, high pressure testing, and magnetic particle inspection, ensuring top quality. It is also coated with Nanoweapon, a family of coatings similar to DSL (Durable Solid Lubricant) developed by Picatinny Arsenal (US ARMY ARDEC), which is exclusively available from Geissele Automatics.

Geissele engineers worked for over three years with a research and development company that collaborated with Picatinny to fine-tune the coating. Nanoweapon provides unparalleled corrosion, wear, and abrasion resistance. Applied at low temperatures, the coating does not affect the part's metallurgy and boasts a surface hardness equivalent to 82HRC, allowing it to easily reject carbon and facilitate cleaning, enabling normal firearm operation with less lubrication.

Restrictions

Is a 'Call to order' product.

Top takeaways

The Geissele Reliability Enhancement Kit features a full-auto rated M16/M4 bolt carrier group and a Super 42 Braided Wire Buffer Spring & Buffer, available in H1, H2, or H3 configurations for 5.56mm AR-15 rifles.
The bolt carrier group is made from enhanced materials like mil-spec 8620 steel and advanced medical steel H13 for the cam pin, all coated with Nanoweapon for superior corrosion and wear resistance.
The kit includes a specially forged and strengthened Carpenter 158+ bolt, designed for a significantly extended lifespan, and the Nanoweapon coating ensures high hardness and ease of cleaning.

Attributes

Cartridge:
```
5.56 mm NATO
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Finish:
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Black
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Weapon type:
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AR-15
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Delivery weight: 0.699kg
Shipping height: 102mm
Shipping width: 102mm
Shipping length: 381mm
UPC: 817953027028

Item details

Made in USA
US export classification: I(g)

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Variations:

RELIABILITY ENHANCEMENT KIT H1

496.15 GBP 0 £496.15 *

Not available

Cartridge: 5.56 mm NATO Finish: Black Make: AR-15 Product no.: 100039951

Not available

496.15 GBP 0 £496.15 *

RELIABILITY ENHANCEMENT KIT H2

507.31 GBP 0 £507.31 *

Not available

Cartridge: 5.56 mm NATO Finish: Black Make: AR-15 Product no.: 100039952

Not available

507.31 GBP 0 £507.31 *

RELIABILITY ENHANCEMENT KIT H3

523.14 GBP 0 £523.14 *

Not available

Cartridge: 5.56 mm NATO Finish: Black Make: AR-15 Product no.: 100039953

Not available

523.14 GBP 0 £523.14 *

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