Hello. Good news everyone, seems to me your lever gun is already tactical. Most are short and light, can fire an effective cartridge and are mechanically reliable. They are easy to strip without special tools and can lay down fairly effective rapid fire. They were designed tactical.
You see in my opinion, tacticool is often overdone (not just on levers). If you want to fit all sorts of whistles and bells to your lever, go for it. Its your gun, your money. However how much of it is really going to improve your performance? Ask yourself the question. The late great Mel Tappin in Survival Guns, (a book I almost actually ate as a young man) said shooters tend to buy just about anything that looks promising. He was right, cause its fun. But for what improvement, exactly?
I respectfully suggest before buying or fitting extra bits we ask ourselves why we need it and what it will achieve. Some are just silly, others seem small but can make a big difference. Keep in mind with guns the more complicated we make them the more training and practice is required, the more to go wrong...
Remember: KISS
So, what extras help, and what extras not so much, and what extras just look cool (no harm in that by the way).