Rifle Build Kit - 5.56 | RTB Complete 16" Upper Receiver | M4 6-Positon Stock Kit | TS LPK

Rifle Build Kit - 5.56 | RTB Complete 16" Upper Receiver with A2 | M4 6-Position Stock and Buffer Tube Kit | TS Lower Parts Kit

RTB Complete 16" 5.56 Carbine Upper Receiver | 15" M-LOK | BCG & CH:

This Complete 16 inch M-LOK upper receiver comes with our RTB 15 inch free float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep

clean.

 
Bolt Carrier Group:

• Enhanced 9310 Steel (Bolt)
• 8620 Tool Steel (Carrier)
• Bolt is shot Peened and MPI
• All BCG components are pre-polished before being processed and then post polished for an incredible shine

Upper Receiver:

• Machined from a Mil-Spec 7075 T6 forging Hard Coat Anodized per Mil-A-8625F, Type III
• M4 Feed ramps
• Made in the U.S.A.

Handguard:

• MATERIAL: HARD COAT ANODIZED ALUMINUM HANDGUARD, ALUMINUM BARREL NUT
• PRECISION BORE
• ACCEPTS M-LOK RAIL SECTIONS & ACCESSORIES
• 7075-T6 BARREL NUT
• RAIL LENGTH IS MEASURED ALONG THE TOP
• INNER DIAMETER: 1.36"

Charging Handle:

• Tried and True Standard Charging Handle
• Forged 7075 Aluminum construction
• Mil-Spec Type-III Hardcoat Anodized finish
• Caliber - .223 / 5.56 / 300 Blackout
• Made in the USA

Tactical Sport 6-Position M4 Stock Kit:

This polymer stock is made from impact-resistant, high-strength material.

• Mil-spec Diameter Extension Tube Made from Aircraft Aluminum with Rolled Threads
• Built for Heavy-duty Operations with Tightest Tolerance Control
  
• Stock Assembly Complete with Action Spring, Buffer Assembly, Tear-drop Ring, and Castle Nut

Complete Mil-Spec LPK

Quality Lower Parts Kit that includes the following:
 

• Takedown/pivot Spring
• Takedown/pivot detent
• Trigger/hammer pin
• Takedown pin
• Pivot pin
• Bolt Catch
• Bolt Catch Spring
• Bolt Catch buffer
• Bolt catch roll pin
• Safety Selector
• Safety Selector spring
• Safety Selector detent
• Buffer retainer
• Buffer retainer spring
• Trigger guard
• Trigger guard roll pin
• A2 pistol grip
• Pistol grip screw
• Pistol grip lock washer
• Trigger spring
• Hammer spring
• Disconnector spring
• Magazine catch body
• Magazine catch spring
• Magazine catch button
• Hammer
• Trigger
• Disconnector

 *May come with standard “tear-drop” endplate OR ambidextrous sling loop endplate based on component availability.