H
Hammerloc32small things to mention
Reviewed on February 10, 2026Verified with Build
love the recoil reduction. side blast is rough indoors
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Yankee Hill Machine SRX Short Muzzle Brake - 5/8"-32 tpi, Black Efficiency - YHM-4445-MB-32
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Yankee Hill Machine
Overview
The Yankee Hill Machine sRx Short Muzzle Brake is designed to effectively reduce recoil and muzzle rise, making it easier to stay on target during rapid fire. With a thread pitch of 5/8"-32, it fits a variety of barrels, particularly those set up for 5.56 NATO ammunition. This muzzle brake is commonly found on builds featuring a mid-length gas system, enhancing performance for both competitive shooting and tactical applications.
Specifications
MPN4445MB32
TypeMuzzle Brake
MaterialSteel
ColorBlack
FinishPhosphate
Muzzle Device TypeMuzzle Brake
Thread Pitch5/8x32
Yankee Hill Machine SRX Short Muzzle Brake - 5/8"-32 tpi, Black Efficiency - YHM-4445-MB-32
Build history on GunPartPicker
Builders have been adding the Yankee Hill Machine SRX Short Muzzle Brake - 5/8"-32 tpi, Black Efficiency - YHM-4445-MB-32 to their builds on GunPartPicker since February 2026. All time, it ranks #15 of the 392 muzzle devices builders have added. Builds with this muzzle device are mostly chambered in 5.56 NATO (67%, then .223 Wylde 33%), split between carbine-length (50%) and rifle-length (50%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today all 5 retailers we track have it in stock. The best price drifted down from $80.99 to $75.31 over August 2026 without a real sale. Buying today, the lowest price is $75.31 at KY Gun Company, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
Not sure which muzzle device to pick?
We ranked every muzzle device by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Muzzle Device Guide →Check it against the live catalog:
Frequently Built With
The part most often added in each category by the 25 builds that include this one
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4
Upper Receiver$129 · out of stockin 5 builds
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers
Charging Handle$69 · out of stockin 4 builds
Daniel Defense 14.5" 5.56 NATO CHF Mid-Length 1:7 Government Contour AR-15 Barrel With Gas Block
Barrel$420in 3 builds
Strike Industries Collar Adjustable Gas Block
Gas Block$83in 7 builds
Bravo Company M16 Bolt Carrier Group Black
Bolt Carrier Group$199in 3 builds
Aero Precision M4A1 Clone Lower Receiver
Lower Receiver$130 · out of stockin 3 builds
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
CaliberBased on real build data showing which calibers builders choose alongside this product.
66.7%
5.56 NATO66.7%
.223 Wylde33.3%
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
50%
Carbine50%
Rifle50%
Builds Featuring This Part
See all 11 →Builds in the community that include the Yankee Hill Machine sRx Short Muzzle Brake - 5/8"-32 tpi, Black Efficiency - YHM-4445-MB-32
| Build | Parts | Total |
|---|---|---|
 | 20 | $1407.35 |
 | 12 | $565.65 |
 | 21 | $3896.10 |
 | 15 | $2540.80 |
 | 12 | $1196.39 |
 | 5 | $573.43 |
 | 9 | $2705.74 |
 | 21 | $2950.23 |
 | 10 | $1169.13 |
 | 30 | $3543.44 |
 | 26 | $2642.22 |
Customer reviews
4.0out of 5
1 global rating
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