--- title: "Franklin Armory Binary HK Trigger Curved" description: "3-position trigger for HK-style firearms with Safe, Semi, and Binary modes. Includes an ambidextrous safety selector and about a 4.5 lb pull." canonical_url: "https://www.kygunco.com/product/franklin-armory-05-50000-blk-bfsiii-hk-c1-binary-firing-system-curved-trigger" meta: author: KYGUNCO "og:description": "3-position trigger for HK-style firearms with Safe, Semi, and Binary modes. Includes an ambidextrous safety selector and about a 4.5 lb pull." "og:image": "https://cdn.kygunco.com/assets/products/134129/thumbnail.jpg?v=1710510378" "og:image:height": "500" "og:image:width": "500" "og:title": "Franklin Armory Binary HK Trigger Curved" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Gun Parts](https://www.kygunco.com/category/shooting/gun-parts) / [Handgun & Rifle Parts](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts) / [Rifle Parts](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts) / [Rifle Triggers](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts/rifle-triggers) / FRN-05-50000-BLK ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/134129/main.jpg?v=1710510378) For illustration purposes only, this image may not be an exact representation of the product. # FRANKLIN ARMORY BFSIII HK-C1 Binary Firing System Curved Trigger Binary firing system curved trigger for HK-style firearms. Offers Safe, Semi, and Binary positions with 1 round per pull and 1 round on release in Binary mode. Features an ambidextrous safety selector, about a 4.5 lb trigger pull, and fits most HK 91, 93, and MP5 variants and clones. Trigger housing and related parts are not included. 3.5 ** ** ** ** ** [2 reviews](#reviews) $629.99 ** 5 interest-free payments of **$126** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) As low as **$112.47**/month with ![Credova text logo](https://www.kygunco.com/brands/credova-text.svg) ** Online In Store ** Flat Rate $13.94 for every 25 lbs. Shipping to HI & AK may incur additional fees. ** Ships To Your Home Handled by our expert shippers in Bardstown, KY. Almost gone. Order now before it sells out. Item # 134129 Style FRN-05-50000-BLK UPC 818725011436 Condition New Manufacturer [Franklin Armory](https://www.kygunco.com/brand/franklin-armory) Weight 1 lb ### Franklin Armory BFSIII HK-C1 Binary Firing System Curved Trigger **All sales are final for triggers.** The BFSIII for HK is a 3-Position Trigger. In position 3 it will fire 1 round on Pull and 1 round on Release. This makes it the fastest semi-automatic trigger on the market. The BFSIII is ideal for Tactical and Competition use. The BFSIII provides greatly reduced split times between rounds and the ability to place two separate shots into a tighter group. **Trigger Operation:** Position 1 – Safe –Will not fire. Position 2 – Semi – Fires 1 round per pull. Position 3 – Binary – Fires 1 round on pull and 1 round on release. **SPECIFICATIONS** - A trigger pull around 4.5 pounds. - Ambidextrous Safety Selector. - Safety Selector will fit in most two and three position trigger housings. - Works in SP5K housings. - Trigger housing, ejector, ejector pin and ejector spring are not included. - Will fit most HK 91, 93, & MP5 variants and clones - Some firearms may require additional fitting **WARNING** - Not for civilian sales in CA, CT, DC, FL, HI, IA, MD, NJ, NY, RI, and WA - NEVER ALTER ANY INTERNAL COMPONENT OF THE BFS™. - Improper installation, use, or tampering with the BFS™ will void the warranty and MAY LEAD TO UNINTENTIONAL DISCHARGE OF THE FIREARM THAT MAY LEAD TO INJURY OR EVEN DEATH. - No refunds will be issued for triggers after installation has been attempted. - By purchasing this product, you are accepting responsibility and liability for the serviceability of the final installation. - AFTER THE BFS™ HAS BEEN PROPERLY INSTALLED, IT IS IMPERATIVE THAT ALL USERS SEEK QUALIFIED TRAINING ON HOW TO USE THESE PRODUCTS. - We have partnered with LMS Defense to provide a 25% discount on training. Those that complete the course will receive a 25% discount code for use on their next purchase on this site. - May require a gunsmith to install. ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 3.5 ** ** ** ** ** 2 reviews ** ** ** ** ** 1 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 1 ** ** ** ** ** 0 ## Reviews ** Justin Lometa, TX Best price I've ever seen, fast shipping, easy install, more fun than you can possibly imagine. Also reduces trigger take up and break by about 50%. Huge improvement over factory trigger 8/10/2022 ** ** ** ** ** ** Nathan Seldin Springfield, MA Transaction with kygunco was great. The frame was damaged, from manufacturer and had to send it for warranty the day after reciept. Been going round and round with manufacturer for about a month now with no resolution yet. 3/17/2021 ** ** ** ** ** ## More from Franklin Armory ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/franklin-armory-05-50000-blk-bfsiii-hk-c1-binary-firing-system-curved-trigger#webpage","@type":"WebPage","description":"3-position trigger for HK-style firearms with Safe, Semi, and Binary modes. 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