Half aluminium / half steel weaver mount to loop a 1.25" sling through.
The oblong circle / oval loop accepts the sling, which swivels forward and backwards. The cylindrical form it is looped through, can rotate 360º. This has a button at its core that, when depressed, allows the loopring to be pulled off. It is retained by means of four ball bearings. Inside of the exposed hole, is a countersunk hex screw that assembles the aluminium bracket. It is necessary to partially dismantle the bracket in order to mount it on a weaver railing.
On the opposite side is a trapezium shape where an HK sling hook can couple on to.
The latter is entirely steel, whilst the skeletized mounting bracket is entirely aluminium.
Useful for airsoft, guard duty and lighter tactical applications, as the skeletized aluminium frame can succumb in harsher conditions and stresses.