{"product_id":"angstadt-hyd-buffer-kit-9-40-45-std","title":"Angstadt Arms HYD Buffer Kit – 9mm\/40 S\u0026W\/45 ACP AR Pistol Caliber","description":"\u003cp\u003eThe Angstadt Arms HYD Buffer Kit is engineered to manage blowback cycling in pistol-caliber AR platforms chambered in 9mm, 40 S\u0026amp;W, and 45 ACP. This hydraulic buffer system smooths the recoil impulse and reduces bolt carrier bounce, improving control during rapid strings and extending component life. It's a direct upgrade for shooters running suppressed or unsuppressed pistol-caliber carbines who want more consistent cycling and less felt recoil.\u003c\/p\u003e\u003cp\u003eThe kit includes a hydraulic buffer and spring assembly designed specifically for standard blowback AR lowers. Installation is straightforward—simply replace your existing buffer and buffer spring with this complete assembly. The hydraulic dampening system slows the bolt carrier group's rearward travel without impeding reliable function, making it compatible with a wide range of pistol-caliber uppers and barrel lengths.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Hydraulic buffer kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-15 pistol-caliber builds (9mm, 40 S\u0026amp;W, 45 ACP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Standard blowback\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-in replacement for standard buffer and spring\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Angstadt Arms","offers":[{"title":"Default Title","offer_id":47944016363775,"sku":"ANGAA09HBKSDP","price":140.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/3568513.jpg?v=1766612221","url":"https:\/\/doublestackstore.com\/products\/angstadt-hyd-buffer-kit-9-40-45-std","provider":"Double Stack Store","version":"1.0","type":"link"}