Magpul SL Collapsible Stock (HK94/MP5)

The Magpul SL Stock is the practical retractable stock for a full-size MP5 or SP5 SBR. It collapses through multiple positions for length-of-pull and storage, runs ambidextrous, and molds in a QD sling socket so you can hang a two-point sling without extra hardware. At street price it undercuts the steel HK and Zenith A3 collapsing stocks, which run several hundred dollars, while giving up little in day-to-day use.

Built from Magpul's reinforced polymer, it keeps weight down at the rear of the gun and installs on the standard full-size receiver stock interface. The collapsing action and cheek surface are tuned for a modern optics-forward hold, which pairs well with a rail-mounted red dot on a top-rail handguard.

Fitment is the HK94/MP5 and SP5 full-size receiver. It does not fit the larger HK91/G3 receivers, the K-pattern short receivers, or the .22 LR MP5. On a braced pistol you would run the SB Tactical SBT5 instead; the SL Stock is for a registered SBR or a host that legally takes a stock.