Lifetime Warranty Lifetime Warranty Made in the USA Made in the USA FREE Shipping on $325+ Free Shipping on all orders $325+!
80% L❂WERS

300 Blackout AR 15 Rifle Kit (16″ Nitride Barrel & 15″ M-Lok Handguard) w/ 80% Lower

$700.00 $550.00 (You Save $150.00)

Complete Rifle Build Kit - 300 Blackout (16" Barrel & 15" M-Lok Handguard) AR15
Complete Rifle Build Kit - 300 Blackout (16" Barrel & 15" M-Lok Handguard) AR15
Clear
Save For Later
Save For Later

Free Shipping on all orders $325+!

SKU: UA300CM41617(P)-(15)MLOK_Budget

Description

Looking for the quickest, easiest, and most affordable way to build a lightweight, .300 AAC blackout AR-15? This build kit comes with the finishing piece, built and ready:  our complete 16″ rifle upper chambered in .300BLK with skeletonized 15″ M-LOK handguard, BCG, and charging handle. This featherweight .300 blackout upper offers superior accuracy with tons of rail space for mounting front sights and other accessories. Some serious aesthetics are a plus with its unique skeletonized handguard.

Mil-Spec Construction

This full-built upper features a mil-spec type III hard-coat anodized finish with a classic, mil-spec M4 flat top upper receiver. M4 feed ramps ensure reliability, and a picatinny rail provides mounting for any standard optic or rear sight. Forged from 7075 T6 aluminum, this upper’s as tough as any black rifle gets. Inside you’ll find a quality, black nitride-coated bolt carrier group made of 9130 steel with chrome-lined gas key and charging handle. This kit comes complete with everything needed to build your own .300 blackout rifle. 

300 Blackout Upper Barrel Features:

  • Chambered in .300BLK
  • 16″ with parkerized finish
  • 4150 chromoly steel
  • contoured profile
  • 1:7 twist rate
  • 5/8 x 24 thread pitch
  • A2 birdcage flash suppressor
  • 15″ M-LOK skeletonized handguard
  • Carbine-length gas system (0.085 Hole)
  • Low profile gas block (0.750)
  • M4 flat top upper receiver
  • M4 feed ramps
  • Carbine gas tube
  • Charging handle
  • Chrome-lined BCG

300 Blackout Build Kit Extras:

  • Buffer tube and spring
  • Enhanced stock
  • Lower parts kit
  • 7075 80% forged lower receiver

No FFL Required

This complete, plug-and-play .300 blackout build kit is the most effective way to finish your .300 blackout AR-15 without any guesswork. The entire barrel and gas system are head spaced and pre-installed, and everything ships to your door with no FFL required and no paperwork needed!

No FFL required Made in the USA Lifetime Warranty

300 Blackout AR 15 Rifle Kit (16″ Nitride Barrel & 15″ M-Lok Handguard) w/ 80% Lower

$700.00 $550.00 (You Save $150.00)

Out of stock

$700.00 $500.00 (You Save $200 )
Clear
Save For Later
Save For Later

Free Shipping on all orders $325+!

NEVER MISS ANOTHER DEAL

Sign-up for exclusive discounts, new product releases and updates from 80-lower.com.

100% Satisfaction
Guaranteed

Customer Service is our passion and we are here to answer any questions you have.
888-623-6480

Shop With PRIDE

Shop With Confidence

Secure Payment

Left Menu IconMENU
Right Menu Icon