Spike's Tactical 5.56 Nato M16 Cut Lightweight Ar-15 Bolt Carrier Group - Nickel Boron

Spike's Tactical 5.56 Nato M16 Cut Lightweight Ar-15 Bolt Carrier Group - Nickel Boron - Bolt Carrier Group for AR-15 - view 1
Spike's Tactical 5.56 Nato M16 Cut Lightweight Ar-15 Bolt Carrier Group - Nickel Boron - Bolt Carrier Group for AR-15 - view 2
Spike's Tactical 5.56 Nato M16 Cut Lightweight Ar-15 Bolt Carrier Group - Nickel Boron - Bolt Carrier Group for AR-15 - view 3
Spike's Tactical 5.56 Nato M16 Cut Lightweight Ar-15 Bolt Carrier Group - Nickel Boron - Bolt Carrier Group for AR-15 - view 4
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Spike's Tactical

Overview

The Spike's Tactical 5.56 NATO M16 Cut Lightweight Bolt Carrier Group features a low mass design that enhances the cycling speed of your AR-15, allowing for quicker follow-up shots and reduced felt recoil. Its Nickel Boron finish not only improves the durability and corrosion resistance of the carrier but also aids in smoother operation and easier cleaning. This bolt carrier group is commonly found in builds utilizing a mid-length gas system, making it a solid choice for those seeking a balance of performance and reliability in their 5.56 NATO rifles.

Specifications

MPNST5BG05
StyleLow Mass Bolt Carrier
Caliber5.56 NATO
FinishNickel Boron

Available Merchants(4)

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$225
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Frequently Built With

Based on build data

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

100%
AR-15100%

Caliber

40%
300 Blackout40%
5.56 NATO40%
.223 Wylde20%

Gas System

50%
Pistol50%
Carbine25%
Mid-Length25%
Frequently Built With Products
ProductCategoryTimes Built Together
Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger23
Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers22
Magpul AFG-2 Angled Fore Grip - Black21
Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green21
Bravo Company Manufacturing 5.56 Nato Mid-Length Bhf Ar-15 Barreled Upper - Mcmr-15 - 16"19
Radian Raptor Slim Line Ambidextrous Ar-15 Charging Handle - Black16
Build Platform Breakdown
PlatformPercentage
AR-15100%
Build Caliber Breakdown
CaliberPercentage
300 Blackout40%
5.56 NATO40%
.223 Wylde20%
Build Gas System Breakdown
Gas SystemPercentage
Pistol50%
Carbine25%
Mid-Length25%

Builds Featuring This Part

See all 19

Builds in the community that include the Spike's Tactical 5.56 Nato M16 Cut Lightweight Ar-15 Bolt Carrier Group - Nickel Boron

BuildPartsTotal
Carbine 16.5" 5.56
13$3085.35
qarr
24$6805.08
for the range mostly 30"
12$2181.66
for hog hunting 10.5"
14$2448.80
16" KAC carbine
19$3531.38
Radian weapons 8"
20$2300.64
8" 5.56
18$1934.92
16" build
12$1588.92
spike's tactical 16"
20$3452.55
stag arms 16"
27$2050.44
LMT 8" 5.56
27$5715.76
Latest 5.56 build
11$1588.12

Customer reviews

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1 global rating

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Top reviews

N
NaimElm
Spikes NiB lightweight smooth
Reviewed on April 24, 2026Verified with Build

Spikes Tactical lightweight nickel boron BCG cycles smoothly thanks to the NiB coating. Lightweight construction reduces reciprocating mass for faster cycling. Bolt is HPT/MPI tested. M16 cut for any trigger configuration.

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