{"product_id":"grovtec-g-comp-9mm-1-2x28-blk","title":"GrovTec G-COMP Muzzle Brake 9mm 1\/2x28 Black – AR-9 \u0026 Pistol Caliber Carbines","description":"\u003cp\u003eThe GrovTec G-COMP muzzle brake reduces felt recoil and muzzle rise on 9mm pistol-caliber carbines and compatible handguns. Designed with dual expansion chambers and side ports, this compensator redirects gas to keep the muzzle flat during rapid fire, improving follow-up shot speed and accuracy. Ideal for competition shooters and home defense setups running AR-9 platforms or threaded 9mm pistols.\u003c\/p\u003e\u003cp\u003eInstallation is straightforward on barrels with 1\/2x28 threading—common on most 9mm firearms. The single-piece steel construction features a durable black oxide finish that resists corrosion and holds up to high round counts. Requires a crush washer or shim kit for proper timing (not included). Compatible with most 9mm carbines and pistols with standard 1\/2x28 threads; verify barrel thread pitch before purchase.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Muzzle Brake \/ Compensator\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 9mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Pitch:\u003c\/strong\u003e 1\/2x28\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-9, 9mm Pistol Caliber Carbines, Threaded 9mm Pistols\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GrovTec","offers":[{"title":"Default Title","offer_id":47940713939199,"sku":"GTHM351","price":37.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/3093569.jpg?v=1766566645","url":"https:\/\/doublestackstore.com\/products\/grovtec-g-comp-9mm-1-2x28-blk","provider":"Double Stack Store","version":"1.0","type":"link"}