Leather rifle sling, shotgun sling, Thumb hole design handmade in USA - Ozark Mountain Leather
Ultimate LOOP SLING for Guns Without Swivels - YouTube
No Drill Rifle Sling - Etsy UK
Build Your Own Shotgun sling (for gun with NO swivels) No swivels required
Padded Total Shotgun Sling: No Drilling / Swivels Necessary! Easy Installation! - YouTube
No-Drill Universal Fit Rifle Sling - BUSHCRAFTS
Amazon.com : HUNTPAL Two Point Non-Swivel Gun Sling Slip On Shotgun Sling with Thumb Hole, Neoprene Padded Shoulder Strap Length Adjustable No Need Drill Rifle Sling, Universal Double Barrel Shotgun Gun Strap :
Allen Standard Endura Mossy Oak Camo Padded Gun Sling No Swivels Required - 83003