The Daniel Defense M4A1 California Compliant is a 5.56 NATO AR-15 rifle built around the RIS II Picatinny quad rail used by US Special Operations Command (Daniel Defense part no. 02-088-06027-055). A 14.5-inch cold hammer forged M4-profile barrel carries a permanently attached Daniel Defense flash suppressor, and the FDE rail finish gives it a distinctive look. Daniel Defense adds its ambidextrous GRIP-N-RIP charging handle and a 10-round Magpul PMAG for this compliant configuration. It is a classic carbine layout for training, range days and home defense.

Key Specifications

• The chambering is 5.56mm NATO, a versatile and widely available rifle cartridge.
• The barrel is 14.5 inches, cold hammer forged, M4 profile, chrome lined, with a 1:7 twist.
• The muzzle device is a pinned and welded extended flash suppressor threaded 1/2×28, which is permanently attached.
• The handguard is the RIS II Picatinny quad rail in FDE, with Santoprene rail panels that resist heat.
• The gas system is carbine-length direct impingement, a proven setup for a 14.5-inch barrel.
• The rifle includes a Magpul 10-round PMAG in this California Compliant configuration.
• Weight is 6.74 pounds and the overall length runs 31.5 to 34.75 inches with the muzzle device.
• The charging handle is the ambidextrous GRIP-N-RIP, which accommodates left- and right-handed shooters.
• The receivers are 7075-T6 aluminum with Type III hard coat anodizing, with a flared magazine well.
• The rifle includes a Daniel Defense buttstock, pistol grip and full-latch hard case, with sights sold separately.

Frequently Asked Questions

What rail does the M4A1 use? It uses the RIS II Picatinny quad rail, which Daniel Defense notes has been used by US Special Operations Command, and this version is finished in FDE.

How many rounds does the magazine hold? Daniel Defense lists a Magpul 10-round PMAG with this California Compliant configuration.

Does it come with sights? No. Sights are sold separately, but the quad rail gives you plenty of Picatinny space for optics and iron sights.

Buy the Daniel Defense M4A1 Rifle, California Compliant, 5.56 NATO, 14.5-Inch Barrel with Pinned Flash Suppressor, FDE Quad Rail, 10-Round

A 14.5-inch M4A1 with a Picatinny quad rail in an FDE finish keeps the classic carbine look, and this compliant version ships with a 10-round magazine. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more AR rifles from our catalog.