Yankee Hill Machine Company YHM-3109-1MB28A Mini QD Brake 9mm 1/2-28 (Pkg Qty 11)
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Yankee Hill Machine Company YHM-3109-1MB28A single-port mini QD muzzle brake for 9mm bore, 1/2-28 thread; includes shim kit; sold in a package quantity of 11 (SKU YHM-3109-1MB28A).
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Description
Description
Product Overview
Yankee Hill Machine Company YHM-3109-1MB28A is listed under Silencer Mounts / Silencers and Accessory categories. Verified attributes describe it as a single-port mini QD brake for 9mm bore with 1/2-28 threading and that it includes a shim kit. Package quantity is 11 and SKU is YHM-3109-1MB28A.
Why This Product
This mini QD brake is identified by bore (9mm), threading (1/2-28 indicated in the short title), and inclusion of a shim kit—facts that are central when matching muzzle devices to barrels and for ensuring correct installation torque and alignment procedures are possible to perform (confirm with manufacturer).
Key Verified Specifications
- Brand / Manufacturer: Yankee Hill Machine Company (source fact ids: product-274245:f002, product-274245:f006, product-274245:f007)
- Category: Accessory — Silencer Mounts / Silencers (source fact ids: product-274245:f003, product-274245:f004, product-274245:f005)
- Model/Identifier & SKU: YHM-3109-1MB28A (source fact ids: product-274245:f001, product-274245:f014)
- Verified features: Suppressor QD Brake 9mm Bore; Single Port Mini QD Brake; Includes Shim Kit (source fact ids: product-274245:f009, product-274245:f011, product-274245:f010)
- Threading and size indicated in existing title: 1/2-28 (source fact id: product-274245:f001)
- Package quantity: 11 (source fact ids: product-274245:f008, product-274245:f012)
- Availability status: in stock (source fact id: product-274245:f015)
Appropriate Use Cases
- Specifying a mini QD muzzle brake for 9mm bore firearms that use 1/2-28 threading where a shim kit is needed to time the device correctly during installation (source fact ids: product-274245:f009, product-274245:f010, product-274245:f011).
- Bulk procurement for accessory kits or armory stocking where items come in 11-unit packages (source fact ids: product-274245:f008).
What Customers Should Know
- The short title indicates 1/2-28 threading and a 9mm bore—verify your barrel thread pitch and bore requirements before ordering to ensure fit (source fact ids: product-274245:f001, product-274245:f009).
- This listing notes inclusion of a shim kit; confirm with the vendor the number and type of shims supplied if precise timing or alignment is required (source fact id: product-274245:f010).
- Package Qty is 11—plan procurement and inventory accordingly (source fact ids: product-274245:f008, product-274245:f012).
- Use SKU YHM-3109-1MB28A when matching orders and receipts (source fact id: product-274245:f014).
Specifications
- Short Stroke Gas Piston Gas System (Rifle Length)
- 18.6″ Barrel Length ( Mid-Weight style, non-fluted)
- 1:8 Twist Rate Rifling

