The Aero Precision M4E1 Complete Lower Receiver with Magpul SL Carbine Stock is the perfect upgrade for your AR build. This complete lower features an M4E1 Lower and is upgraded to include an Magpul PRS Lite Stock. The MOE SL® Stock – Mil-Spec Model (MOE Slim Line) is a drop-in replacement buttstock for AR15/M4 carbines using mil-spec sized receiver extension tubes. Designed for the modern battlefield, the sleek profile, dual-side release latches, rolled toe, and angled rubber butt-pad are optimized for use with body armor or modular gear and provides for efficient shoulder transitions.

INCLUDES:

• M4E1 Lower Receiver

• Magpul MOE Grip

• Magpul SL Carbine Stock

• Lower Parts Kit

• Carbine Receiver Extension

• Enhanced Carbine Buffer Tube

M4E1 THREADED UPPER RECEIVER FEATURES:

• New enhanced forging that gives the upper receiver a "billet look"

• New picatinny profile that blends seamlessly with our Enhanced Series Handguards

• M4 Feedramps

• .250 takedown pin holes

• Laser engraved T-marks

• Includes port door and forward assist installed

ATLAS S-ONE HANDGUARD FEATURES:

• Front and rear picatinny rail

• Eliminated center of top rail for weight reduction

• Indexing grooves in 12:00 position for positive grip control

• Quick disconnect sling socket at the 3, 6 and 9 o'clock positions

• Compatible with low profile gas blocks

• 1.3" Inside diameter

• 1.5" Outside diameter

• Compatible with mil-spec AR15 upper receivers and barrels

• Learn More about our NEW ATLAS Handguards

16" .223 WYLDE STAINLESS STEEL QPQ BARREL, MID-LENGTH FEATURES:

• .223 Wylde 16" Mid Length Barrel, 1/8 Twist

• QPQ Corrosion Resistant Finish

• .750 gas block journal

• Mid length gas system

• M4 Feed Ramp Extension

• HP and MPI tested

• Standard A2 flash hider

Sig Wisky 4 optical 5X20X50 included 

Also comes with Aero BCG