Sionics Weapon Systems

SIONICS Weapon Systems M16 5.56 AR-15 Bolt Carrier Group - Phosphate

Sionics Weapon Systems M16 5.56 Ar-15 Bolt Carrier Group - Phosphate - Bolt Carrier Group for AR-15 - view 1

Sionics Weapon Systems

Overview

The Sionics Weapon Systems M16 5.56 AR-15 Bolt Carrier Group is designed specifically for use with the 5.56 NATO caliber, featuring a phosphate finish that enhances durability and corrosion resistance. This M16-style bolt carrier operates smoothly within the gas system, making it a reliable choice for builders looking to optimize performance in carbine-length setups. It is commonly found in builds utilizing a carbine gas system, providing the necessary reliability and efficiency for both tactical and recreational shooting scenarios.

Specifications

MPNSWS-BCG
StyleM16 Bolt Carrier
Caliber5.56 NATO
FinishPhosphate

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October 2026 on GunPartPicker

SIONICS Weapon Systems M16 5.56 AR-15 Bolt Carrier Group - Phosphate ranked #143 of the 258 bolt carrier groups builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #375 of the 552 bolt carrier groups builders have added.

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Frequently Built With

The part most often added in each category by the builds that include this one

Griffin Armament MK1 AR-15 Stripped Lower Receiver

Griffin Armament MK1 AR-15 Stripped Lower Receiver

Lower Receiver$80in 29% of them
Geissele Automatics Airborne Charging Handle Black

Geissele Automatics Airborne Charging Handle Black

Charging Handle$100in 29% of them
Aero Precision M4E1-T Atlas R-One Complete Upper Receivers 10.5" 5.56mm - AR-15 M4E1-T 10.5 In Atlas R-One Complete Upper 5.56mm Black

Aero Precision M4E1-T Atlas R-One Complete Upper Receivers 10.5" 5.56mm - AR-15 M4E1-T 10.5 In Atlas R-One Complete Upper 5.56mm Black

Upper Receiverin 14% of them
Leapers UTG Ambidextrous 45/90 AR-15 Safety Selector - Black

Leapers UTG Ambidextrous 45/90 AR-15 Safety Selector - Black

Safety$16in 29% of them
Geissele Automatics Geissele Cold Hammer Forged 5.56 NATO 12.5" 1:7" 1/2x28 Chrome Lined Barrel 05-2988

Geissele Automatics Geissele Cold Hammer Forged 5.56 NATO 12.5" 1:7" 1/2x28 Chrome Lined Barrel 05-2988

Barrel$365 · out of stockin 14% of them
JP Enterprises Competition Trigger AR-15 Small Pin .154" 3 Lb Single Stage

JP Enterprises Competition Trigger AR-15 Small Pin .154" 3 Lb Single Stage

Trigger$95 · out of stockin 14% of them

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

90%
AR-1590%
AR-106.9%
AR-93%

Caliber

69.2%
5.56 NATO69.2%
.223 Wylde8.7%
300 Blackout8.7%
.308 Win5.5%
9mm2.7%
Other5.1%

Gas System

50.6%
Mid-Length50.6%
Carbine27%
Pistol10.7%
Rifle10.2%
Blowback1.1%
Other0.3%

Builds Featuring This Part

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Builds in the community that include the Sionics Weapon Systems M16 5.56 Ar-15 Bolt Carrier Group - Phosphate

BuildPartsTotal
For the family fun 10.5" build
For the family fun 10.5"		18$1454.22
12.5" BCM pistol build
12.5" BCM pistol		11$2643.71

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