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FN FNX TACTICAL FLAT DARK EARTH .45 ACP 5.3" BARREL 10-ROUNDS VORTEX VIPER SIGHT
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SIG SAUER MCX-SPEAR LT UPPER/CONV. KIT BLACK .300 AAC BLACKOUT 9″ BARREL
| Manufacturer | Sig Sauer |
|---|---|
| Model | MCX-Spear LT Upper/Conv. Kit |
| Type | Uppers |
| Stock | In stock |
Original price was: $2,096.99.$1,887.29Current price is: $1,887.29.
Buy NowSig Sauer MCX-Spear LT Features
The MCX-Spear LT Upper/Conversion Kit sets itself apart with a dual rod recoil assembly that eliminates the need for a traditional buffer system, enabling a more compact and efficient design. The M4 adapter expands configuration options, allowing for Pic rail folding stock capabilities, enhancing the platform’s versatility. An adjustable gas system permits fine-tuning for suppressor use, ensuring reliable performance under different operating conditions.
Further innovation is seen in the quick-change barrel design, facilitating easy caliber and barrel length swaps, and a gas piston design that significantly reduces carbon fouling on critical parts, extending the operational life of the system. Designed with durability in mind, this kit is intended to go 20k rounds before necessitating part replacements. The inclusion of an SLX/SLH Next Gen Suppressor Designed QD Flash Hider offers quick-detach adaptability, while the ambidextrous charging handle with a gas deflector adds to the user-friendly nature of the system.
Sig Sauer MCX-Spear LT Specifications
- Model: SIG MCX-SPEAR LT
- Caliber: 300 BLK
- Barrel Length: 9″
- Overall Length: 17.5″
- Weight: 3lb, 14.7oz
- Barrel Material: Nitride Coated Cold Hammer Forged
- Barrel Rifling Type: Hammer Forged
- Twist Rate: 1:5
- Operating System: Gas Piston
- Muzzle Device: 3-Prong/SIG Suppressor QD
- Muzzle Thread Pitch: 5/8-24
- Handguard Length: 7.94″
- Handguard Inside Diameter: 1.48″
- Handguard Material: Aluminum
- Receiver Finish: Black Anodized
- Bolt Carrier Group Included: Yes
- Bolt Carrier Finish: DLC
- Charging Handle Included: Yes
- Forward Assist: Yes
- Free Floated Handguard: Yes
| Barrel Length | 9 |
|---|---|
| Caliber | .300 AAC Blackout |
| Condition | New in Box |
| Finish Per Color | Black |
| Manufacturer | Sig Sauer |
| Manufacturer Part Number | UAMCX-300B-9B-LT-BLK |
| Model | MCX-Spear LT Upper/Conv. Kit |
| Type | Uppers |
| UPC | 798681682522 |
Frequently Asked Questions – SIG SAUER MCX-SPEAR LT UPPER/CONV. KIT BLACK .300 AAC BLACKOUT 9" BARREL
- How fast does this ship?
- Ships in 1‑3 business days to your licensed D.C. FFL dealer after purchase and registration.
- Do I need registration?
- Yes. DC requires firearm registration, including a mandatory 10‑day waiting period after purchase approval from MPD before pickup. Handguns require registration, magazines <=10 rounds.
- Is this legal in D.C.?
- Yes, provided it complies with D.C. law (registered, no assault features, magazine ≤10 rounds).
- Is the SIG SAUER MCX-SPEAR LT UPPER/CONV. KIT BLACK .300 AAC BLACKOUT 9" BARREL suitable for me?
- This SIG SAUER MCX-SPEAR LT UPPER/CONV. KIT BLACK .300 AAC BLACKOUT 9" BARREL is popular for uses like new arrivals.
- Popular searches by customers
| Model | |
|---|---|
| Type | Uppers |
| UPC | 798681682522 |
| Stock | In Stock |
| Manufacturer | |
| Brand | Sig Sauer |
Shipping Policy – Washington, D.C.
Orders ship within 1‑3 business days to your selected licensed FFL dealer in D.C. Registration must be in process and CDP confirmed.
Return Policy
Non-firearm items returnable within 14 days if unused and in original packaging. Firearms sales are final once registered and possession occurs per D.C. code.
Consult our Return Policy page for more details.