Compared on builder picks, today's prices and specs.
Our pick: the builders' favorite

Builders pick it 8 to 1 over the Yankee Hill Machine SRX Short Muzzle.
$129.00at Primary Arms, in stock
Builders pick the Huxwrx 556 QD Flash Hider 8 to 1 over the Yankee Hill Machine SRX Short Muzzle. It is in 9.2% of GunPartPicker builds that have a muzzle device, against 1.2% for the Yankee Hill Machine SRX Short Muzzle. It costs $48 more today ($129.00 against $80.75), so the Yankee Hill Machine SRX Short Muzzle is the value pick if price comes first.
4 stores we track have the Huxwrx 556 QD Flash Hider in stock. Builders paid a median $129.00 for it when they added it, against $80.99 for the Yankee Hill Machine SRX Short Muzzle. On paper they differ on type (Flash Hider against Muzzle Brake) and thread pitch (1/2x28 against 5/8x24). It is most often built with the Bravo Company Bolt Carrier Group and the Geissele Automatics SSA-E X.
Builders pick the Huxwrx 556 QD Flash Hider 7.5 to 1.
Shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales. Slot share is the share of builds with a muzzle device that chose this one. Median paid is the price shown when builders picked it, not today's price; the table below has today's prices.
| Spec | ![]() | ![]() |
|---|---|---|
| Lowest in stock | $129.00Primary Arms | $80.75BattleHawk Armory |
| Stores in stock | 4 | 4 |
| Type | Flash Hider | Muzzle Brake |
| Thread Pitch | 1/2x28 | 5/8x24 |
| Caliber | 5.56 NATO | Not listed |
| Material | Not listed | Steel |
| Finish | Not listed | Phosphate |
| Color | Not listed | Black |
| Actions |
Every store we track for each part, cheapest in stock first. Prices are checked through the day.