Description
There's a lot of competition in the entry level AR market these days, and the Combat Armory CA-15 makes its case with hardware you'd normally find a tier up. Both the upper and lower receivers are machined from billet 7075-T6 aluminum with a Type III hard coat anodized finish, and the rest of the parts list sticks to proven mil-spec components. That means standard takedown, standard parts compatibility, and no head scratching when you want to swap a trigger or grip down the road.
Barrel and Gas System on the CA-15
The 16 inch barrel is 4140 chrome moly vanadium steel with a Melonite finish inside and out, which holds up well against wear and corrosion without adding the weight of chrome lining. The M4 profile keeps things handy, the 1:7 twist stabilizes everything from light varmint loads up to heavier 77 grain match ammo, and M4 feed ramps help rounds chamber smoothly. A carbine length gas system runs through a .750 low profile gas block tucked under the handguard, and the muzzle wears a classic A2 flash hider on standard 1/2×28 threads if you ever want to run a different device.
A 15 Inch M-LOK Handguard With Full Length Rail
The free float handguard is where this rifle separates itself from a lot of budget builds. You get 15 inches of slim rail with M-LOK slots for lights, hand stops, and bipods, plus an uninterrupted full length Picatinny rail up top that mates with the receiver for backup sights, optics, or night vision setups. Free floating the barrel also helps consistency, since sling tension and grip pressure aren't pushing on anything that affects your point of impact.
Why the Combat Armory CA-15 Earns a Spot in the Safe
With an ambidextrous style safety, forward assist, dust cover, and a 30 round magazine included, this is a complete, ready to run 5.56 carbine that covers home defense, range days, and training courses without fuss. It's a smart starting point for a first AR or a dependable base for a build you'll grow into.
Key Specifications
- Manufacturer: Combat Armory
- Manufacturer Part Number: CA15.15FR.556R
- UPC: 789091896388
- Caliber: 5.56x45mm NATO
- Barrel Length: 16 inches
- Barrel Material: 4140 Chrome Moly Vanadium
- Barrel Finish: Melonite
- Barrel Profile: M4 with M4 Feed Ramps
- Twist Rate: 1:7
- Muzzle Device: A2 Flash Hider, 1/2×28 Thread
- Gas System: Carbine Length, .750 Low Profile Gas Block
- Handguard: 15" Free Float M-LOK, Full Picatinny Top Rail
- Receivers: Billet 7075-T6 Aluminum, Type III Hard Coat Anodized
- Safety: Ambidextrous Style, Mil-Spec
- Magazine Capacity: 30 Rounds
- Shipping Weight: 8.61 lbs
What’s Included
- Combat Armory CA-15 rifle
- One 30 round 5.56 magazine
Frequently Asked Questions
Can the Combat Armory CA-15 shoot .223 Remington ammo?
Yes. The CA-15 has a 5.56 NATO chamber, which safely handles both 5.56x45mm NATO and .223 Remington ammunition. The reverse isn't true for .223-chambered rifles, so having the 5.56 chamber here gives you maximum flexibility when picking up range ammo.
Is the CA-15 compatible with standard AR-15 parts and magazines?
It is. Combat Armory builds this rifle around mil-spec components, so it accepts standard AR-15 magazines and the huge aftermarket of triggers, grips, stocks, and charging handles. If you like to tinker or upgrade over time, this platform won't box you in.
What bullet weights work best with the 1:7 twist barrel?
A 1:7 twist is on the faster side, which means it stabilizes heavier bullets really well. It shines with 62 to 77 grain loads, and standard 55 grain ball ammo still shoots fine for plinking and training. If you plan on shooting heavier match or defensive loads, this twist rate is a great fit.
Does the Combat Armory CA-15 come with sights?
No, it ships without sights, which is common at this price point. The full length Picatinny rail running across the receiver and 15 inch handguard gives you tons of real estate for a red dot, magnified optic, or flip-up backup sights. Plan on adding your preferred sighting setup before your first range trip.




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