WORLDWIDE SHIPPING. Free Shipping for US Continental orders over $99. Click for details.

Spinlock BRS 50mm Jamming Spinnaker Block

Item #


Product Description

An excellent choice for situations where a fixed foot block just won't do, the Spinlock BRS 50MM Jamming Spinnaker Block provides controlled spinnaker handling in a range of conditions. This block is equipped with a locking cam, making it ideal for changing sheet winch, sail changes and locking spinnaker sheets upwind. The locking cam can be tuned to the exact rope size ranging from 6 to 10 millimeters. It features a plain bearing sheave for smooth running at low loads and has a rugged composite and alloy construction for excellent durability at high loads. This Spinlock jammer block from Atlantic Rigging Supply requires no drilling and can be attached via a webbing strop, which is positioned on a toe rail or padeye, helping to eliminate clutter on the deck.


  • Locking cam with three distinct operating modes

  • Strop allows fullest rotation for spinnaker sheet use

  • Safe cam load: 160 kilograms (352 pounds)

  • Specifications

  • Rope Range - 6mm - 10mm (1/4" - 3/8")

  • Load -  kg - 800kg (1760lb)

  • Max SWL - 800kg (1760lb)

  • Weight - 0.2kg (0.44lb)