Outfitters Score™
Good
Sig Sauer, Inc. scores as a top-tier build with premium pricing and a bare-bones configuration.
Our proprietary rating combines brand tier, price percentile within the caliber, feature completeness, barrel versatility, retailer availability, caliber practicality, and use-case fit.
Description
The MCX platform has long been SIG SAUER'S breeding ground for developing the best rifle system in the world through extensive testing, continued innovation and customer feedback. Now SIG SAUER introduces the latest evolution with the new MCX-SPEAR LT, based on its predecessor the MCX Virtus the new MCX-SPEAR LT has a lightened handguard with attachment screws for additional rigidity and a lightened profile barrel with improved accuracy. Other features of the MCX-SPEAR LT include an ambidextrous bolt catch and release on its lower, coyote anodized finish, minimalist stock for maximum compact foldability and AR15 style trigger compatibility. And the new MCX-SPEAR LT brings the long a Mfg: Sig Sauer, Inc.
Features
Ambidextrous|Ambi
Full Specifications
Overview
| Brand | Sig Sauer, Inc. |
| Model | PMCX-300B-9B-LT |
| SKU | 430103151 |
| Rifle Type | pistol |
| Platform | AR15 |
| Caliber | 300 Blackout |
| UPC | 798681660841 |
Receiver
| Receiver Finish | anodized |
| Forward Assist | No |
| Dust Cover | No |
Handguard
| Free Float | No |
Muzzle
| Suppressor Ready | No |
Sights & Optics
| Optic Ready | No |
Dimensions & Weight
| Magazine Capacity | 30 rounds |
Finish
| Finish | black |
Compliance
| CA Compliant | No |
| Classification | AR Pistol |
| NFA Item | No |
What's Included (Complete Rifle)
This is a complete, ready-to-shoot firearm.
Upper Receiver
Lower Receiver
Barrel
Bolt Carrier Group
Handguard
Grip
Trigger
Muzzle Device
Charging Handle
Gas Block
Gas Tube
Buffer Tube
Backup Iron Sights
Optic
You'll need to purchase this part separately.
Use the links above to find compatible options, or open the builder to check compatibility.
NFA Warning
AR pistols require a stabilizing brace, not a rifle stock. Adding a stock to a pistol creates a Short Barreled Rifle (SBR) requiring NFA registration.
Manufacturer · Tier 1
See everything Sig Sauer→
Build Guide
See our .300 Blackout Build→
State Check
This rifle has NFA or magazine considerations →
Swiss-origin firearms giant. The M400 and MCX platforms compete in the premium space, and Sig won the US Army NGSW rifle contract with the XM7.
View brand profile →Pmcx Spear-Lt 300 Aac Blackout Pistol - Pmcx Spear-Lt 300 Aac Blackout 9"bbl (1)30 Round Mag Coyote
PMCX-300B-9B-LT
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