AR-15 Rifle Kit – 16″ / 300 AAC / 1:8 / 15″ CBC Arms Gen 2 Keymod AR-15 Handguard / Rail / Bolt Carrier Group / Charging Handle / AR-15 Buttstock Kit / Buffer Tube Kit / AR-15 Lower Parts Kit

Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)

$428.00 $339.00

In stock

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The   Generation 2 upper assembly featuring a 7 sided Keymod Rail , perfect for 3 gunners! The receiver is a flat top M4 Mil-Spec upper receiver are forged CNC Machined from 7075-T6 Aluminum, the hardest and most durable material of any upper! This 16” 300 Blackout barrel is made from 4150 Chrome Moly steel, has 1:8 twist rate & pistol gas system.This incredible rail has 200% increase in keymods, so your attachment position options are endless! The rail is a 15” CBC Keymod rail made from Airplane Aluminum and then hard coat anodized to improve the strength!




Barrel: 16″ 300AAC Melonite Barrel Chrome Moly

Twist Rate: 1:8

Feed Ramps: M4

BCG: Case Hardened 8620 Steel Nitride Coated, M4/AR-15 Compatible, Mil-Spec/MP Tested

Gas Block: Steel .750 Low Profile

Gas Tube: DGI Stainless pistol-Length

Muzzle Device: Steel A2 Style Flash Hider

Rail: 15″ CBC Gen ll Free Float Keymod

Upper Receiver: Forged Upper Receiver

Upper Components: Mil-Spec Forward Assist, Mil-Spec Dust Cover, and Brass Deflector


CBC Industries Buttstock Kit includes:

  • Multiple sling attachment points including QD swing swivel sockets
  • Large rubber butt-pad that is removable
  • 6 Position Buttstock
  • Locking clip to ensure placement
  • Mil-Spec Receiver Extension
  • Mil-Spec Spring
  • Buffer
  • End Plate
  • Locking Castle Nut

Complete AR-15 Lower Parts Kit ready for installation in your lower receiver. Standard AR-15 components include:

Hammer, Hammer Pin, Hammer Spring, Trigger, Trigger Pin, Trigger Spring, Trigger Guard ,Trigger Guard Pin, Disconnector, Disconnector Pin, Safety Selector, Safety Selector Detent, Safety Selector Spring, Pistol Grip, Pistol Grip Screw, Pistol Grip Lock Washer, Bolt Catch, Bolt Catch Spring, Bolt Catch Buffer, Bolt Catch Roll Pin, Take Down Pin, Pivot Pin, Take down & Pivot Detent (x2), Take down & Pivot Spring (x2), Magazine Catch, Magazine Catch Button, Magazine Catch Spring, Buffer Retaining Pin,Buffer Retaining Pin Spring



Failure to observe safe firearm handling practices may result in serious bodily injury or death. CBC Industries shall not be responsible for injury, death, or property damage resulting from faulty installation, misuse, illegal use, or modification of this product. Additionally, it is highly recommended that the firearm (as with all new firearms) is thoroughly inspected, cleaned and oiled prior to use.

Additional information

Weight 5 lbs
Dimensions 16 x 11 x 3 in


Barrel Length


Twist Rate

1 review for AR-15 Rifle Kit – 16″ / 300 AAC / 1:8 / 15″ CBC Arms Gen 2 Keymod AR-15 Handguard / Rail / Bolt Carrier Group / Charging Handle / AR-15 Buttstock Kit / Buffer Tube Kit / AR-15 Lower Parts Kit

  1. Rated 5 out of 5

    Robert Gass

    I purchased an AR 15 rifle kit in 300 Blackout 10 January with the Gen 2 15″ Keymod hand-guard. Everything on the upper is great, no problems. I used a stripped lower from PSA, it all went together without a hiccup, the trigger group and safety operate as slick as glass, the trigger is crisp with no creep; I had some concerns with the detent pins for the pivot and takedown pins, both pins were difficult to operate even with plenty of lube, it took a little break in time before they worked well, the pivot pin is still extra tight, surely not going to work it’s way out while I’m shooting. The other thing I noticed and have not made time to take some measurements is the threading on the buffer tube, it seems to be threaded farther back than other mil-spec tubes, the Hogue over-mold stock I installed catches on the last couple of threads when collapsed all the way and yes the buffer tube is screwed in as far as it can be and still allow the buffer retaining pin to operate. It ran great with no hangups during the 80 round test firing. Overall I’m happy with the kit especially considering the Lifetime Warranty and reasonable price I paid for it.

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