Britannia Rails Extended Reversible Picatinny Rail, Centrefire brand_-Franchi The Caterpillar Powerplant GYW is

The Caterpillar Powerplant GYW is a leather safety boot built on traditional Goodyear-welted construction

sleeve and micrometer thimble — swaps in and out of the powder measure body with a single push of a button

waterproof body maintains performance through condensation

The 56 mm objective lens works alongside ZEISS's 90% light transmission optics

Britannia Rails Extended Reversible Picatinny Rail, Centrefire brand_-Franchi The Caterpillar Powerplant GYW isBritannia Rails' Universal Reversible Extended Length Picatinny Rail is a centrefire scope mounting rail built to slide over an existing two piece Weaver or Picatinny base rather than replace it, turning a pair of separate rings into one continuous length of rail. Six screws locate through eight different holes, and grub screws lift the rail up and centre it on the base beneath, giving a solid, secure grip once torqued down. Because the rail is