

AR-15 Rifle Kit 15″ M-lok with Windows Assembled WITH 80% Lower
$519.95 Original price was: $519.95.$399.95Current price is: $399.95.
This Daytona Tactical AR-15 build kit is genuinely complete — 16″ 5.56 nitride chrome moly barrel, 1:7 twist, 15″ Window M-LOK handguard, bolt carrier group, charging handle, muzzle device, 80% lower receiver, full lower parts kit, and stock kit all included.
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AR-15 Complete Build Kit — 16″ 5.56, Window M-LOK, with 80% Lower
This AR-15 build kit from Daytona Tactical is genuinely complete — a nitride chrome moly 16″ 5.56 barrel with a 1:7 twist, an assembled 15″ Window M-LOK upper, bolt carrier group, charging handle, and muzzle device, plus an 80% lower receiver, full lower parts kit, and stock kit all included in the box.
Specifications
- Caliber: .223/5.56
- Barrel Length: 16″
- Barrel Material: Chrome Moly, Nitride Finish
- Barrel Twist: 1:7
- Barrel Thread: 1/2″-28
- Gas System: Carbine-length, .750″ Gas Block
- Handguard: 15″ Window M-LOK
- Color: Black
- Bolt Carrier Group: Included
- Charging Handle: Included
- Muzzle Device: Included
- Lower Receiver: 80% Lower Included
- Lower Parts Kit: Included
- Stock Kit: Included
- Made in the USA
This 5.56 complete rifle kit is not an FFL item because the lower receiver is an 80% machined lower receiver. We do not ship 80% lower receivers to NY, RI, NJ, CT, MD, DE, HI, IL, NV, CA, WA, Washington D.C., Denver CO, or Boulder CO.
This kit is part of our AR-15 .223/5.56 rifle build kit lineup. Since the 80% lower still needs machining, check out our 80% lower receiver jigs to finish the build.
| Weight | 8 lbs |
|---|---|
| Brand | |
| Barrel Chamber | |
| Barrel Finish | |
| Barrel Gas Block | |
| Barrel Gas System | |
| Barrel Length | |
| Barrel Material | |
| Barrel Thread | |
| Barrel Twist | |
| Caliber | |
| Color | |
| Handguard Length | |
| Platform | |
| Accessory Attachment Style | M-lok |
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Does this kit include the bolt carrier group and charging handle?
Yes. The upper comes fully assembled with a mil-spec bolt carrier group, charging handle, and muzzle device installed.
Is the 80% lower receiver a regulated firearm?
No. An 80% lower is not a firearm under federal law and does not require an FFL transfer. You will need to finish machining it before it can be assembled.
Are there state restrictions on shipping this kit?
Yes. We do not ship 80% lower receivers to NY, RI, NJ, CT, MD, DE, HI, IL, NV, CA, WA, Washington D.C., Denver CO, or Boulder CO.
Is anything else needed to complete the build?
You will need to finish machining the 80% lower and provide any optics or sights, which are not included but can be added at checkout.
What handguard pattern does the Window M-LOK feature?
The Window M-LOK handguard is a 15″ free-float design with a slim profile for lightweight, low-profile accessory mounting.




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