BKF M4 MOD-0 Standard Power Magpul SL-S Lower Build Kit

Description

New for 2020 is our BKF m4 mod-0 buffer tube assembly’s that is part of our new premium series. The premium series will offer a vast number of bkf components that have been made with the ar builder in mind. Not only does the premium series offer extremely high quality products, but it also offers very competitive pricing. They are available in standard, intermediate or extra power configurations.  These are manufactured for heavy duty use in mind. This buffer tube assembly is the perfect starting place for any high quality build.

This is standard in all rifle length 5.56mm/223 wylde weapon systems ranging from 18″ to 20″. This is also standard in all of our 300 Blackout weapon systems. 

Mil Spec Buffer Tube Features:

• 7075 aluminum
• Hard Anodized Type III Matte Black finish (Greystone)
• 6-Positions
• Weight: 3.7 OZ
• Fits: AR-15 or LR308 Buffer Tube

Lower Build Kit Includes:

• BKF M4 MOD-0 Standard Power Carbine Buffer Tube Assembly (3oz buffer with sprinco white)
• BKF AR15 Enhanced M4 MOD-0 Lower Parts Kit (LPK) (Nitride components, Billet trigger guard, BKF AR15 Mag Release Button and moe grip)
• Magpul SL-S Carbine Stock

Sprinco WHITE AR15 Standard “Regular” Power Spring:

Equivalent spring power of a “fresh” AR15/M4 carbine action spring, this spring is for users who do not want to dabble with improving performance with extra power springs, but do not want to frequently replace their action springs as well.

Standard AR15/M4 buffer springs (aka “action springs”) are wear items which must be replaced regularly in order for AR-15s to operate reliably, with conservative replacement taking place every 5000 rounds. Sprinco action springs in comparison, are over engineered and will last over 50,000 cycles.

Sprinco Chrome Silicon buffer springs are heat treated, stress relieved, and dual-stage shot peened in separate post winding treatments.  Sprinco also treats each spring with a proprietary, deep-penetrating, re-micronized (to .3 Micron particle size), inhibited, Molybdenum-Disulfide (MoS2) formulation to eliminate 90% of all mechanical wear on the spring:  this is why Sprinco springs do not produce the spring sound during shooting which is common with standard action springs.

PRODUCT SKU: BKF-M4M0-LBK-SP-SLS