Out of stock
SKU: IQZ000000J
UPC: 850020843510
MPN: Z000000J
The Brigade Manufacturing AR15 & AR9 3.5LB Single Stage Curved Drop-In Trigger is a factory pre-set, single-stage unit built for shooters who want a cleaner break than a stock MIL-SPEC trigger gives them. It fits both MIL-SPEC AR-15 rifles and AR9 pistol-caliber builds, so a single part number covers most of the lowers in a typical safe. The Brigade trigger ships as a self-contained drop-in cassette with a curved shoe, aimed at range work, competition, and duty carry where a predictable pull matters more than a long, mushy take-up.
The pull weight is set at 3.5 lbs at the factory and is not user-adjustable, which keeps the break consistent shot to shot without anything to drift out of spec. The body is machined aluminum with a black anodized finish, and the unit is CNC-machined from high-grade materials per Brigade's specifications. Take-up is minimal, the break is clean, and the reset is short and positive for faster follow-up shots. The package includes a set of anti-walk pins to lock the cassette into the lower without the hammer and trigger pins backing out under recoil. If you want a flat shoe instead of the curved profile, the Brigade flat-shoe version uses the same internals.
This trigger suits an AR-15 carbine or an AR9 pistol-caliber build where the shooter wants a faster, more repeatable break for steel, USPSA-style stages, or a defensive setup. Installation is straightforward: drop the cassette into a standard MIL-SPEC lower and secure it with the included anti-walk set pins. If you are comparing 3.5 lb drop-ins, it lines up against units like the Lantac E-CT1 curved single stage and the CMC curved drop-in. See the rest of our AR trigger parts to match a shoe profile and pull weight to your build.
No. The 3.5 lb pull weight is set at the factory and is not user-adjustable. That fixed setting keeps the break consistent shot to shot, with no spring tension to drift out of spec over time.
Yes. The unit is built for MIL-SPEC AR-15 rifles and AR9 pistol-caliber pistols and rifles. As a self-contained drop-in cassette, it installs in a standard MIL-SPEC lower receiver for both platforms.
Yes. Brigade includes a set of anti-walk pins to secure the cassette in the lower and keep the hammer and trigger pins from backing out under recoil. No separate pin purchase is needed for a standard install.
The two share the same internals and 3.5 lb pull. The difference is the shoe shape: this model uses a curved trigger face, while the flat-shoe version offers a straight profile that some shooters prefer for finger placement and leverage.
It is made in the USA. The cassette is CNC-machined from high-grade materials per Brigade Manufacturing's specifications, with an aluminum body and black anodized finish.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
