Yankee Hill Machine

Yankee Hill Machine Co. AR-15 16.5" Threaded Fluted Barrel 1-8 Twist

Yankee Hill Machine Co., Inc. Ar-15 16.5" Threaded Fluted Barrel 1-8 Twist - Barrel for AR-15 - view 1

Yankee Hill Machine

Overview

The Yankee Hill Machine Co. AR-15 16.5" Threaded Fluted Barrel is designed for precision and performance in the 5.56 NATO caliber. Its fluted profile not only reduces weight but also enhances cooling, while the 1:8 twist rate ensures excellent stability for a variety of bullet weights. This barrel is optimized for a carbine-length gas system, making it a solid choice for builds focused on reliability and versatility.

Specifications

MPNYHM-48-TF
Barrel ProfileFluted
Gas System LengthCarbine
Caliber5.56 NATO
Barrel Length16.5
FinishNitride
Twist Rate1:8
CoatingNitride

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Build history on GunPartPicker

Builders on GunPartPicker first added the Yankee Hill Machine Co. AR-15 16.5" Threaded Fluted Barrel 1-8 Twist to a build in February 2026. Builds with this barrel are nearly all chambered in 5.56 NATO, nearly all on carbine-length gas, and nearly all AR-15.

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Frequently Built With

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

Yankee Hill Machine Complete AR-15 Lower Receiver - M4 Stock

Yankee Hill Machine Complete AR-15 Lower Receiver - M4 Stock

Lower Receiverin 32% of them
Zro Delta AR-15 Forged M4 Stripped Upper Receiver

Zro Delta AR-15 Forged M4 Stripped Upper Receiver

Upper Receiver$720 · out of stockin 30% of them
Zev Technologies Wedge Lock AR-15 Handguard - 16.625"

Zev Technologies Wedge Lock AR-15 Handguard - 16.625"

Handguard$274in 15% of them
Yankee Hill Machine AR-15 Charging Handle

Yankee Hill Machine AR-15 Charging Handle

Charging Handle$40 · out of stockin 23% of them
WMD Guns 5.56 AR-15 Bolt Carrier Group Without Hammer - NIB-X Finish - Black

WMD Guns 5.56 AR-15 Bolt Carrier Group Without Hammer - NIB-X Finish - Black

Bolt Carrier Groupin 10% of them
Zro Delta AR-15 Fire Control Group Laser Cut Disconnector

Zro Delta AR-15 Fire Control Group Laser Cut Disconnector

Trigger$30 · out of stockin 18% of them

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

100%
AR-15100%

Builds Featuring This Part

See all builds →

Builds in the community that include the Yankee Hill Machine Co., Inc. Ar-15 16.5" Threaded Fluted Barrel 1-8 Twist

BuildPartsTotal
Second 5.56 build build
Second 5.56 build		12$1534.30
Carbine 16.5" 5.56 build
Carbine 16.5" 5.56		13$3342.24
16.5" recce build
16.5" recce		25$1750.39
Spike's tactical 16.5" build build
Spike's tactical 16.5" build		11$1626.19
16.5" zev technologies build build
16.5" zev technologies build		10$1494.87
Latest 5.56 build build
Latest 5.56 build		11$1300.53
New 5.56 build build
New 5.56 build		12$1868.18
16.5" yankee hill machine pistol build
16.5" yankee hill machine pistol		13$524.47
Second 5.56 build build
Second 5.56 build		22$2473.61
16.5" yankee hill machine recce build
16.5" yankee hill machine recce		24$3983.32
Vltor 16.5" build
Vltor 16.5"		20$754.82
16.5" 5.56 build
16.5" 5.56		27$2093.63

Customer reviews

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Top reviews

A
Anonymous
YHM 16.5 fluted bore
Reviewed on December 2, 2025

bore is consistent and the fluting saves a few oz off a standard contour. 1-8 twist stabilized everything i fed it from 55 to 77 gr. crown was recessed and protected by the thread cap, no eccentricity i could see with a bore light

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