The Zenith Firearms ZF-5 A3 4-Position Retractable Stock (Zenith Firearms part no. ZF5A3STK) brings genuine A3-pattern stock specifications to full-size MP5-platform firearms. The 4-position locking system lets shooters dial in length of pull for different body types, armor, or shooting positions, while a heavy-duty steel-reinforced polymer shoulder pad holds up to repeated hard use. It is built to fit the Zenith ZF-5, MP5, SP5, MP5-SD, and other full-size MP5-pattern guns, making it a direct, drop-in upgrade or replacement stock. Shooters running an MP5-clone for home defense, competition, or range work get a stock built to the original A3 spec without hunting down surplus parts.

Key Specifications

• Built to genuine A3 stock specifications.
• Features a 4-position locking system for adjustable length of pull.
• Uses a heavy-duty steel-reinforced polymer shoulder pad.
• Fits the Zenith ZF-5 and full-size MP5 platform.
• Also fits the SP5 and MP5-SD and other full-size MP5-pattern guns.
• Reinforced polymer body construction is built for durability under repeated use.

Frequently Asked Questions

What firearms does this stock fit? The Zenith ZF-5, MP5, SP5, MP5-SD, and other full-size MP5-platform guns.

How many positions does it lock into? 4 positions for adjustable length of pull.

Buy the Zenith ZF-5 A3 4-Position Retractable Stock

Order it from our Lubbock, Texas gun shop for fast, direct shipping. It is a genuine A3-spec upgrade for any full-size MP5-platform build. Shop more of our rifle stocks selection.