AR-STONER AR-15 Build Kit with Upper Receiver Assembly 5.56x45mm NATO 16″ Barrel Mid Length 15″ M-LOK Handguard, Complete Lower Receiver Parts Kit, Stock Assembly 6-Position Mil-Spec Collapsible

This AR-Stoner carbine length upper features a mil-spec bolt carrier group, phosphate finish, A2 fixed front sight and a government profile barrel. The A3 upper will attach to virtually any standard AR-15 lower receiver and comes complete with charging handle, forward assist, ejection port cover, bolt and bolt carrier assembly. With a 1 in 7″ twist, the 16″ barrel provides outstanding accuracy with a wide range of projectiles. Supplied without a rear sight, this upper is a great platform for a red dot sight or iron sights (both sold separately).

The AR-STONER Carbine Kit also includes a M4 mil-spec 6-position stock assembly. The buffer tube is machined from 6061-T6 aluminum and given a hard coat anodized finish to withstand years of abuse. The 6-position telescoping stock features a built-in sling swivel to mount your favorite rifle sling.

Included in the Carbine Kit is the AR-STONER Lower Parts Kit which includes everything needed to build a complete lower receiver, except a stripped lower receiver. All parts are made to standard military specifications.

Lower Parts Kit Includes

• Bolt Catch
• Bolt Catch Plunger
• Bolt Catch Roll Pin
• Bolt Catch Spring
• Buffer Retainer
• Buffer Retainer Spring
• Disconnector
• Disconnector Spring
• Hammer
• Hammer Pin
• Hammer Spring
• Magazine Catch
• Magazine Catch Button
• Magazine Catch Spring
• A2 Pistol Grip
• Pistol Grip Lock Washer
• Pistol Grip Screw
• Pivot Pin
• Pivot Pin Detent
• Pivot Pin Detent Spring
• Safety Selector
• Safety Selector Detent
• Safety Selector Detent Spring
• Takedown Pin
• Takedown Pin Detent
• Takedown Pin Detent Spring
• Trigger
• Trigger Guard
• Trigger Guard Roll Pin
• Trigger Pin
• Trigger Spring

M4 Stock Assembly Includes

• M4-Style Adjustable Stock
• 6-Position Mil-Spec Carbine Buffer Tube
• Carbine Length Buffer Tube Spring
• Recoil Buffer
• Castle Nut
• End Plat
  

  Specifications

  Product Information

  Cartridge	5.56x45mm NATO
  Color	Black
  Finish	Anodized
  Material	Aluminum
  Barrel Length	16 Inches
  Barrel Material	4150 Chrome Moly Vanadium Steel
  Barrel Finish	Black
  Twist	1:7
  Threads	1/2″-28
  Sights	No
  Chrome Lined	No
  Gas Block Diameter	0.75 Inches
  Gas System Length	Mid-Length
  M4 Feed Ramps	Yes
  Upper Receiver Type	A3 Flat-Top
  Handguard	15″ M-LOK
  Muzzle Device	A2 Flash Hider
  Buttstock	Collapsible
  Compatible With	AR-15

  Delivery Information

  Shipping Weight

  7.235 Pounds