Compared on builder picks, today's prices and specs.
Our pick: best price today

$57 less than the Quad Rail in stock today.
$173.95at Brownells, in stock
Builders split too evenly to call it, so this pick is on price.
The Suppressor Series is $173.95 at Brownells today, $57 less than the Quad Rail. 5 stores we track have the Suppressor Series in stock.
Builders paid a median $154.95 for it when they added it, against $209.95 for the Quad Rail. On paper they differ on handguard length (10.5 against 15), mounting interface (M-LOK against Picatinny) and gas system length (Carbine against Rifle). It is most often built with the Bravo Company Mfg Upper Receiver and the Aero Precision Breach Charging. Both are Midwest Industries parts, so the choice comes down to the model, not the maker.
A close call between the Midwest Industries Quad Rail and the Midwest Industries Suppressor Series.
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 handguard 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 | $230.95Optics Planet | $173.95Brownells |
| Stores in stock | 5 | 5 |
| Handguard Length | 15 | 10.5 |
| Platform | AR-15 | AR-15 |
| Mounting Interface | Picatinny | M-LOK |
| Gas System Length | Rifle | Carbine |
| Construction Type | Free-Float | Not listed |
| Color | Black | Black |
| Weight | 17 | 11.2 |
| Actions |
Every store we track for each part, cheapest in stock first. Prices are checked through the day.