All buckles working find elastin also fine.
eBay
Drop Leg Carry Platform Aluminum Adjustable Modular Pistol Holster Adapter for QLS Tactical Hunting Airsoft Accessories
Aliexpress UK
Used to hold handgun, pistol & revolver. Drop Leg Holster Adjustable Right Thigh Pistol Gun Holster. Tactical thigh pistol holster. Can be attached in the wrist belt and fasten to the leg. A spare pouch on side for storage convenience.
eBay
Drop Leg Holster Adapter 2" Mid Ride Belt Loop with QLS Quick Locking System Tactical Gun Holder Accessories with Thigh Strap
Aliexpress UK
Various hole designs, compatible with QLS System. Stainless Steel Cabin Hook And Eye Latch Lock Shed Gate Door Silent Catch Holder. Toy & Gift. Type : Holster Adapter. 20PC Dolls House Pocket Coke Soda Bottle Drinks 1:12 Scale Miniatures Accessory.
eBay
QLS 19 22 Low-ride Gun Holster Platform Tactical Quick Locking System for Universal Pistol Holster Drop Leg Gun Holster Hunting
Aliexpress UK
The quick release buckle can be easily fasten and take off to make people of different sizes move more comfortable. 【MULTI-PURPOSE USE】This leg bag can be uesd in multiple ways to free your hands and move freely.
eBay
Hunting Thigh Holster Drop Leg Platform Quick Release Molle Hunting Drop Leg Holster Paddle Adapter Platform Leg Plate
Aliexpress UK
The drop leg thigh autolock tactical holster is designed for carrying a 1911 pistol with two removable magazine slots. Made of durable black plastic, this tactical holster provides a secure and comfortable carry location on the thigh. The autolock feature ensures a snug fit for the gun, making it ideal for tactical operations or everyday carry. Its sleek design and practicality make it a must-have accessory for any 1911 pistol owner.
eBay
MP7 Leg Holster，Adjustable Drop Leg Holster，Drop Leg Bag for Men Women
Aliexpress UK
Condor Tornado Tactical Holster. - One magazine pouch, with adjustable hook and loop flap. - Fully adjustable leg strap with non-slip rubber lining and quick release buckle.
eBay
Leg Strap for Holster, Tactical Thigh Strap Leg Belt for Gun Holsters Knife 1.5in/36mm EDC Leg Hanger for Men Women
Aliexpress UK
4pcs/Set Tactical Rail Mount Covers Fits 20mm W/P Rail Panel 2Color. Universal Tactical Pistol Scope Sight Laser Light Mount Quad 7/8" For 20mm Rail. 30-66mm PP Lens Cover Rifle Scope Protect Cap Caliber Quick Flip Spring Up Open.
eBay
2 Pcs Tactical Elastic Leg Strap Thigh Strap Belt for Leg Gun Holster for Hunting & Outdoor EDC Leg Holder with Release Buckle
Aliexpress UK
Colour: Coyote. 2 Hook and Loop fasten mag pouches. What is more the pouch goes with one leg extender and one elastic thigh strap, and was designed to be strapped to a belt system. Highlander Forces Drop Leg Mag Pouch.
eBay
Tactical Leg Armor Guards, Legs Protection Armour Suits, Riot Suits Supplies Full Body Protective Leg and Knee Pads Equipment
Aliexpress UK