Sierra Defense 12 Gauge 20Rd Drum - Black

Upgrade your 12-gauge AR-platform or MKA1919 shotgun with Sierra Defense's rugged 20-round drum magazine. Built from high-strength, lightweight polymer, this patented design was stress-tested for 10,000 rounds to deliver flawless feeding and rock-solid reliability. A streamlined internal system means fewer moving parts, faster maintenance, and effortless loading, perfect for home defense, competition, or range time. The reinforced, corrosion-resistant steel feed tower shrugs off harsh conditions, while the compact profile keeps handling nimble. Load up, lock in, and run your scattergun longer.

Features:

• 20-Round Capacity — enjoy extended shooting sessions without constant reloads.

• Lightweight Polymer Body — up to 25% lighter than comparable drums for better balance.

• Patented, Simplified Mechanism — fewer parts = greater reliability and easier cleaning.

• 10,000-Round Reliability Test — proven durability you can trust when it counts.

• Reinforced & Coated Steel Feed Tower — corrosion-resistant for long service life.

• User-Friendly Loading — quick-release winding wheel and clear visual round count.

• Universal Fit — compatible with AR-style MKA1919 and most clone 12-gauge shotguns.

• Multi-Purpose Ready — ideal for home defense, 3-gun, tactical drills, or fun on the range.

Compatibility:

Compatible with almost all magazine-fed shotguns & bullpups. Tested to work with:

• Panzer Arms (excluding DT12 Gen 2)
• Ascim Arms Bullpup BP-12 G2
• EGX500
• AR12
• SCRXII
• AR Twelve G4
• G-Force Firearms
• Bora Arms BR99, BR99X, BR99S
• Barak Arms GFY-1
• Typhoon F12, Typhoon XII
• Black Aces
• Radikal ARMS MK Series/NK Series
• Ria Imports
• Aksa CF-12, BH-12, BSA-12, BP-12
• Tokarev
• Sds Imports
• Husan
• ATI Bulldog SGA
• Derya ARMS MK12101, MK12101 AS
• CARINA CVX401
• CITADEL BOSS25

⚠️ NOT Compatible with Saiga.