Bad Attitude Department M4A1 AR-15 Lower Receiver - Stripped Lower

The Bad Attitude Department M4A1 Stripped Lower Receiver delivers a faithful reproduction of the iconic M4A1 Government Property markings for tribute and clone builds. CNC-engraved on modern 7075-T6 forged aluminum, this lower delivers the look of the original platform with current production quality.

• CNC-machined 7075-T6 forged aluminum
• M4A1 Government Property markings, CNC engraved
• Fire control group pocket to current government M4 spec
• Hard coat anodized finish
• Manufacturer markings beneath the trigger guard
• Tight lug pocket tolerance for a wobble-free fit

This tribute lower reproduces the M4A1 Government Property markings through precision CNC engraving, capturing the look of the original platform while acknowledging that CNC engraving produces a visually distinct result from the roll-mark process used on surplus military receivers. The fire control group pocket is machined to current government M4 specification for compatibility with the full range of standard mil-spec trigger components, and manufacturer markings sit beneath the trigger guard to keep a clean profile true to the M4A1 reference. Caliber is marked 5.56MM, consistent with the M4A1 specification, and upper receiver lug pockets are machined to the lower end of the tolerance range for a secure, snug fit, so uppers at the high end of their own tolerance may need minor fitting. This lower is a strong foundation for M4A1 clone builds.

Bad Attitude Department is a small American manufacturer focused on producing quality tribute and mil-spec-inspired AR-15 lowers, applying precision CNC engraving and forged 7075-T6 construction to deliver authentic-looking receivers for the clone and tribute building community.