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

Rifle Build Kit - 5.56 | RTB Complete 16" Upper Receiver with A2 | Mission First 6-Position Minimalist 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:

Designed to be the lighted stock on the market, the BMSMIL Battlelink from Mission First went through extensive input from operators to find the best balance of functionality and lightweight materials. Manufactured using a special, military grade, reinforced polyamide, the BMSMIL Battlelink adapts to operational needs by utilizing custom accessory mounts and new sling configurations but weighs under 6 ounces. The stock is designed for mil-spec 1.148 diameter extensions and is proudly made in the United States. If you have questions or concerns, be sure to contact us!

• Slide-on replacement for original collapsible butt stock
• Angled non-slip rubberized buttpad for faster presentation
• Quick detach sling mounting point positioned perfectly for ambi shooters
• Upper section includes enhanced cheek weld

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.