SKU: 4375 HK 416A5 Lower Build Upgrade Kit

416A5 lower build parts kit. This partial kit includes most of the hard to find, tan/RAL8000 parts needed for the A5/A7 builds and conversions.

All parts pictured are included:

• Extended Castle Nut
• Ambidextrous Magazine Release
• Ambidextrous Bolt Catch ( HK )
• Enlarged Trigger Guard
• A5 Sling Swivel Plate ( HK )
• Polymer A5 Selector Set

Additional A5 add-on products also available. Just select the ones you’d like to add to your bundle!