Colt M4 Carbine Magpul SL 16.1 Inch Rifle

Description

The CR6920MPS-B is Colt’s factory answer to the question most M4-pattern owners eventually ask: why buy the furniture separately? It ships with a Magpul MOE SL handguard, buttstock, pistol grip, and vertical grip already fitted, so it functions as a practical starting point for a duty-ready or range carbine without requiring an immediate parts order. The rifle suits shooters who want a mil-spec M4 foundation with a coherent, proven furniture package rather than a bare-bones stock configuration.

The 1:7-inch twist rate is optimized for heavier projectiles in the 62–77 grain range, including M855 and Mk 262 loads, while still stabilizing standard 55-grain ammunition reliably. Shooters planning to run lighter varmint loads should be aware that this twist will overstabilize some very light bullets at longer ranges, though for general-purpose and defensive use it covers the widest practical range of 5.56 NATO and .223 Rem ammunition.

The upper receiver runs a flat-top rail with an A2 front sight tower and a Magpul MBUS folding rear sight. That pairing keeps the iron-sight baseline intact while leaving the top rail unobstructed for a red dot or magnified optic. When a magnified optic goes on, the MBUS folds flush so it does not interfere with eye relief or cheek weld. The magazine well accepts standard AR-pattern magazines and ships with one 30-round magazine. The chrome-lined, black-finished barrel is a Colt constant across this line and contributes to sustained reliability under fouling and adverse conditions.

Shipping and availability: This item cannot be shipped directly to California, Rhode Island and Washington. It cannot be sold into Illinois and Oregon. Check your state and local requirements before ordering. This item must ship to a licensed FFL dealer for transfer.