Ruger LC Carbine Accessories & Upgrades 2026

What To Upgrade First

Buy magazines first, optic second, trigger third. The factory carbine already ships with adjustable iron sights, a folding stock, a free-float M-LOK handguard, and a threaded barrel, so most of what owners chase on other platforms is already on this gun. The thinness of the aftermarket is a feature here: it keeps you from spending money on parts that do not change how the rifle shoots. Magazines are the one consumable that decides whether a range day runs, a lightweight dot is the biggest hit-probability upgrade on a low-recoil carbine, and the M*CARBO spring kit is the cheapest meaningful change to how the trigger feels.

1

Ruger-57 20-Round 5.7x28mm Magazine

Highest-ROI first buy; feeds both the carbine and the Ruger-57 pistol

$37

Shop at Classic Firearms

• +Identical magazine feeds both the LC Carbine and the Ruger-57 pistol, so one inventory of spares covers both guns
• +Black oxide alloy steel body and feed lips hold geometry better than polymer under repeated loading
• +Witness holes let you verify round count without dropping the mag

• −Capacity caps at 20 rounds; no purpose-built extended factory option exists
• −Standard 20-round version cannot ship to magazine-capacity-restricted states (CA, WA, NY, NJ, others), which require the 10-round 90712
• −5.7x28 ammo is expensive, so feeding multiple mags adds up fast at the range

2

Holosun SCRS MRS

Best overall optic; a compact, lightweight rifle red dot for a light carbine

$269.99

View at OpticsPlanet

• +Solar charging with an internal rechargeable battery means no CR2032 to swap; up to 20,000 hours of runtime
• +Compact and lightweight, which suits the 5.9 lb LC Carbine
• +Multi-reticle system (2 MOA dot, 65 MOA circle, or both) and Shake Awake; NRA paired it specifically with the LC Carbine

• −Internal rechargeable battery has a finite lifespan measured in years
• −Solar panel must see light to top off during long storage
• −509T footprint limits some traditional Aimpoint-style mount options

3

M*CARBO Ruger LC Carbine / LC Charger Trigger Spring Kit

Cheapest meaningful feel upgrade; lightens the factory trigger

$29

Buy Direct from M*CARBO

• +Sub-30-dollar kit M*CARBO rates at roughly a 40 percent pull reduction (factory near 5 lb to under 3 lb)
• +One kit fits every LC Carbine caliber (5.7x28, 10mm, 45 ACP) and the LC Charger because it tunes the shared fire-control
• +Includes the two installation fixtures that make the captive firing-pin and sear springs manageable

• −Spring-only kit; it cannot fix gritty engagement surfaces the way a complete trigger or a stoning job would
• −Lighter hammer spring trades a crisper pull for thinner primer-strike margin on a defensive gun
• −M*CARBO recommends qualified gunsmith installation; the firing-pin and sear springs are fiddly

4

Trijicon MRO

Best durable tube red dot for a do-everything carbine

$479

View at OpticsPlanet

• +Bombproof sealed tube housing shrugs off range and field abuse
• +Large 25mm objective gives a wide, fast field of view for close-range work
• +Five-year battery life on a medium setting with a 2 MOA dot for precision past red-dot ranges

• −Heavier and bulkier than the SCRS on a lightweight 5.7 carbine
• −Mount is sold separately on the base optic
• −Premium price relative to a budget-friendly plinker build

5

Sig Sauer Romeo5

Best budget red dot; keeps a plinker build cheap

$139

View at OpticsPlanet

• +Around $130 keeps total cost in check on a recreational 5.7 carbine
• +2 MOA dot with MOTAC motion activation and a 40,000+ hour battery life
• +Includes both a low and a co-witness riser mount in the box

• −Open-tube housing is less rugged than the MRO or SCRS
• −Smaller objective than the MRO narrows the field of view
• −Glass clarity trails the premium options

6

Aimpoint Micro T-2

Best premium red dot for a buy-once optic

$986.00

View at OpticsPlanet

• +One of the most durable red dots ever built with a 5-year-plus battery life on a single CR2032
• +Excellent parallax performance inside 100 yards, the LC Carbine's practical envelope
• +Tube design protects the emitter from debris and weather

• −Costs nearly as much as the carbine itself
• −Manual rotary brightness dial with no Shake Awake; you turn it on and off by hand
• −Overkill for a low-recoil recreational plinker

7

Dead Air Mask HD

Best suppressor; multi-caliber can rated for 5.7x28 plus rimfire

$426.99

Shop at KYGUNCO

• +Full-auto rated for 5.7x28 and threads directly to the factory 1/2x28 barrel
• +Titanium tube keeps it to 6.6 oz, light enough not to upset a 5.9 lb carbine's balance
• +Multi-caliber rating (22 LR, 22 Mag, 17 HMR, 5.7x28) lets one stamp cover the carbine plus rimfire hosts

• −Direct thread only, no quick-detach mount
• −Premium pricing relative to a dedicated rimfire-only can
• −As a rimfire-class can it has less internal volume than a dedicated centerfire 5.7 suppressor, so expect more backpressure than a purpose-built centerfire unit

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Best Optics for the Ruger LC Carbine

A lightweight red dot is the right optic for almost every LC Carbine. The cartridge is flat-shooting and the recoil is closer to a 22 LR carbine than a 9mm PCC, so the limiting factor on hits inside 100 yards is the sight, not the gun. The single most important spec is weight: this is a 5.9 lb carbine, and a heavy optic ruins the balance that makes it a pleasant gun to shoot all day. The Holosun SCRS MRS is the best overall pick because it is a compact, lightweight 20mm rifle dot that runs on solar plus a rechargeable internal battery so there is no CR2032 to swap, and the NRA paired it specifically with this carbine. The Trijicon MRO is the durable tube alternative, the SIG Romeo5 keeps a plinker build cheap, and the Aimpoint Micro T-2 is the buy-once option if you want a dot you will move from gun to gun for the next decade. For how to weigh red dots against prisms and LPVOs across platforms, see the optic selection guide.

1

Holosun SCRS MRS

Best overall optic

$269.99

View at OpticsPlanet

• +Solar plus rechargeable internal battery, no CR2032 to swap
• +Compact and lightweight
• +Multi-reticle and Shake Awake; NRA paired it with this carbine

• −Rechargeable cell has a multi-year lifespan
• −Solar panel needs light during long storage
• −509T footprint narrows some mount options

2

Trijicon MRO

Best durable tube dot

$479

View at OpticsPlanet

• +Sealed tube housing takes field and range abuse
• +25mm objective gives a wide, fast sight picture
• +Five-year battery on a 2 MOA dot

• −Heavier than the SCRS
• −Mount sold separately on the base optic
• −Premium price for a plinker

3

Sig Sauer Romeo5

Best budget dot

$139

View at OpticsPlanet

• +~$130 keeps a recreational build cheap
• +MOTAC motion activation, 40,000+ hour battery
• +Ships with low and co-witness mounts

• −Open tube is less rugged than the MRO or SCRS
• −Smaller objective narrows the field of view
• −Glass trails the premium picks

4

Aimpoint Micro T-2

Best premium buy-once dot

$986.00

View at OpticsPlanet

• +Among the most durable red dots ever built
• +Excellent parallax inside 100 yards
• +Tube design shields the emitter from debris

• −Costs nearly as much as the carbine
• −Manual rotary brightness dial; no Shake Awake auto-sleep
• −Overkill for a low-recoil plinker

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Trigger Upgrade: The M*CARBO Spring Kit

The cheapest meaningful feel upgrade on the LC Carbine is the M*CARBO trigger spring kit, a sub-30-dollar set that M*CARBO rates at roughly a 40 percent pull reduction, taking the factory trigger from near 5 lb to under 3 lb. One kit fits every LC Carbine caliber (5.7x28, 10mm, and 45 ACP) and the LC Charger because it tunes the shared fire-control group, and it ships with the two installation fixtures that make the captive firing-pin and sear springs manageable. Understand what it is and is not: it lightens the pull, but a spring-only kit cannot fix gritty engagement surfaces the way a complete trigger or a stoning job would, and the lighter hammer spring trades a crisper break for a thinner primer-strike margin, which matters if this is a defensive gun. M*CARBO recommends qualified gunsmith installation because the firing-pin and sear springs are fiddly.

Suppressors and the 1/2x28 Threaded Barrel

The LC Carbine's muzzle story is the factory 1/2x28 thread plus a suppressor, not a muzzle brake. A 16.25-inch 5.7 carbine has so little recoil that a brake changes nothing worth paying for, but the threaded barrel means a can mounts directly with no adapter. The Dead Air Mask HD is the standout pick: it is full-auto rated for 5.7x28, threads straight onto the factory barrel, and its titanium tube keeps it to 6.6 ounces, light enough not to upset the carbine's balance. Its multi-caliber rating (22 LR, 22 Mag, 17 HMR, and 5.7x28) lets a single stamp cover the carbine plus rimfire hosts, which is the strongest argument for it over a dedicated centerfire 5.7 can. The honest caveat: 5.7x28 is a centerfire cartridge, and as a rimfire-class can the Mask HD has less internal volume than a purpose-built centerfire 5.7 suppressor, so expect more backpressure. If you want the full NFA walkthrough, our how to buy a suppressor guide covers the Form 4 process end to end.

The regulatory picture in 2026 is friendlier than the old framing suggests. The federal making and transfer tax on suppressors is now $0, eForm 4 approvals are running on the order of days to a couple of weeks rather than months, and suppressors are legal to own in 42 states. A NICS background check and a Form 4 still apply, so this is a paperwork process, not a no-paperwork one, but the friction is a fraction of what it was.