Home > Lowers > Mk4 Lowers (AR15 Type)
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Lower Receiver, AR-15
Suggested Retail Price $149.95
Lower Group, Mk4, w/A1 Butt Stock
Suggested Retail Price $319.95
Type: Mil-Spec AR-15
Material: Forged 7075-T6 Aluminum
Finish: Type III Hard Anodized

Note: Standard takedown/pivot pin holes and .155" trigger/hammer pin holes.
Type: Mil-Spec AR-15
Material: Billet 6061-T6 Aluminum
Finish: Type III Hard Anodized

Includes bolt catch screw.

Note: Standard takedown/pivot pin holes and .155" hammer/trigger pin holes.
Type: Mil-Spec AR-15
Material: Forged 7075-T6 Aluminum
Finish: Type III Hard Anodized
Trigger: Single Stage Mil-Spec Trigger
Grip: A2 Pistol Grip
Selector: Standard AR-15 Safety Selector
Butt Stock: A1-Length Fixed Buttstock
Buffer System: Standard Rifle Spring and Rifle Buffer

Note: Standard takedown/pivot pin holes and .155" hammer/trigger pin holes.
Lower Group, Mk4, w/M4 Butt Stock
Suggested Retail Price $319.95
Lower Group, Mk4, Pistol
Suggested Retail Price $319.95
Type: Mil-Spec AR-15
Material: Forged 7075-T6 Aluminum
Finish: Type III Hard Anodized
Trigger: Single Stage Mil-Spec Trigger
Grip: A2 Pistol Grip
Selector: Standard AR-15 Safety Selector
Butt Stock: M4 Style Buttstock
Receiver Extension: 6 Position Mil-Spec Dia.
Buffer System: Standard Carbine Spring and Standard Weight Carbine Buffer

Note: Standard takedown/pivot pin holes and .155" hammer/trigger pin holes.
Type: Mil-Spec AR-15
Material: Forged 7075-T6 Aluminum
Finish: Type III Hard Anodized
Trigger: Single Stage Mil-Spec Trigger
Grip: A2 Pistol Grip
Selector: Ambidexterous AR-15 Safety Selector
Butt Stock: M4 Style Buttstock
Receiver Extension: 6 Position Mil-Spec Dia.
Buffer System: Standard Carbine Spring and Standard Weight Carbine Buffer

Note: Standard takedown/pivot pin holes and .155" hammer/trigger pin holes.
Type: Mil-Spec AR-15
Material: Forged 7075-T6 Aluminum
Finish: Type III Hard Anodized
Trigger: Single Stage Mil-Spec Trigger
Grip: A2 Pistol Grip
Selector: Standard AR-15 Safety Selector
Butt Stock: N/A
Receiver Extension: Knurled Pistol Tube
Buffer System: Standard Carbine Spring and Standard Weight Carbine Buffer

Note: Standard takedown/pivot pin holes and .155" hammer/trigger pin holes.
Lower Group, Mk4, Pistol, w/MOE BLK
Suggested Retail Price $339.95
Lower Group, Mk4, w/MOE BLK
Suggested Retail Price $379.95
Type: Mil-Spec AR-15
Material: Forged 7075-T6 Aluminum
Finish: Type III Hard Anodized
Trigger: Single Stage Mil-Spec Trigger
Grip: A2 Pistol Grip
Selector: Ambidextrous AR-15 Safety Selector
Butt Stock: A1-Length Fixed Length Buttstock
Buffer System: Standard Rifle Spring and Rifle Buffer

Note: Standard takedown/pivot pin holes and .155" hammer/trigger pin holes.
Type: Mil-Spec AR-15
Material: Forged 7075-T6 Aluminum
Finish: Type III Hard Anodized
Trigger: Single Stage Mil-Spec Trigger
Grip: Magpul MOE Pistol Grip
Selector: Standard AR-15 Safety Selector
Butt Stock: N/A
Receiver Extension: Knurled Pistol Tube
Buffer System: Standard Carbine Spring and Standard Weight Carbine Buffer

Note: Standard takedown/pivot pin holes and .155" hammer/trigger pin holes.
Type: Mil-Spec AR-15
Material: Forged 7075-T6 Aluminum
Finish: Type III Hard Anodized
Trigger: Single Stage Mil-Spec Trigger
Trigger Guard: Magpul MOE Trigger Guard
Grip: Magpul MOE Pistol Grip
Selector: Standard AR-15 Safety Selector
Butt Stock: Magpul MOE Buttstock
Receiver Extension: 6 Position Mil-Spec Dia.
Buffer System: Standard Carbine Spring and Standard Weight Carbine Buffer

Note: Standard takedown/pivot pin holes and .155" hammer/trigger pin holes.