HAR General Purpose 16.5″ 5.56
FFL transfer required.
A full-capability 16.5″ 5.56 carbine optimized for the 100–400 yard band: EOTech holographic sight with 3x magnifier, suppressor-ready, and hand-assembled as a complete fighting system.
Reference HARG011 travels with your message.
Specifications
- Caliber
- 5.56 NATO
- Barrel Length
- 16.5 in
- Twist Rate
- 1:7
- Gas System
- Mid-length, adjustable
- Weight
- 7 lb 8 oz (bare)
- Finish
- Type III hard-coat anodized / Cerakote Graphite Black
Build Components
- Barrel Horizon Arms Research
16.5" 1:7 5.56 NATO, mid-length gas, threaded 1/2x28
- Handguard Horizon Arms Research
13.5" free-float M-Lok, slim profile
- Trigger Geissele
SSA-E two-stage, 3.5 lb
- Optic EOTech
512 holographic sight with G33 3x magnifier on flip mount
- Muzzle Device SureFire
SOCOM 3-prong flash hider / suppressor mount
The Build Story
The all-rounder, dialed in
Most real-world engagements won’t push past 400 yards, and most of those happen fast. The General Purpose platform is built for that band: 16.5” of barrel to get the most out of 5.56, paired with the EOTech holographic sight and a 3x magnifier on a flip mount. One motion, one target, from close contact to mid-range, without swapping glass. Slightly longer and heavier than our CQB carbines, but the tradeoff is accuracy and stopping power at distance.
A complete rig, not a stripped receiver
The EOTech and magnifier are installed, zeroed, and proven before the rifle leaves the shop. Suppressor-ready threading means a can drops straight on without a thread adapter. The free-float M-Lok handguard keeps the barrel harmonics clean and the profile slim. Every component is selected to work together as one system, with no mismatched rail heights, no afterthought mounts, no guesswork.
Engineered and proven, shipped complete
This rifle is assembled by hand, torqued to spec, and function-fired. We don’t ship rifles that haven’t earned it on their own before leaving our bench. Built as a system from muzzle to buffer, the GP 5.56 is the carbine for the shooter who wants a capable, optic-up rifle and doesn’t want to spend weekends solving someone else’s parts compatibility problems.
Ready to make this one yours?
Builds are configured to order around how you'll actually carry and use them. Start a conversation and we'll spec it with you.