H&K MR762 A4 Slimline Buttstock Black Polymer Retractable

The HK MR762 A4 Slimline is a compact, retractable buttstock produced by Heckler & Koch. It is finished in black and built in polymer as listed in manufacturer materials. The design is described as slimline and retractable, intended for use with AR-15/M16 platforms. The stock is marked with the HK logo and has been issued on select HK 416 and MR556 rifle variants.

Key Specifications

• Manufacturer: Heckler & Koch / H&K.
• Model / Part: 50237550 (MR762 A4 Slimline).
• Finish / Color: Black.
• Construction: Polymer.
• Type: Retractable buttstock.
• Compatibility: Fits commercial & mil-spec AR-15/M16 buffer tubes.
• Branding: Marked with the HK logo.
• Issued on: HK 416 / MR556 rifle variants.
• Weight (as listed): .8.

Designed for shooters who value a compact, reliable folding stock option for AR-pattern rifles, the HK MR762 A4 Slimline blends a low-profile silhouette with the proven fitment of commercial and mil-spec buffer tubes. Its polymer construction and retractable profile make it a practical choice for applications where space and controllability matter. The stock’s HK marking and proven service on HK platforms reflect its OEM pedigree and functional design.