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There's a reason the Colt M4 name carries real weight in the AR world. This isn't a rebadged budget build dressed up in Colt rollmarks. The M4P6933 is built on the same forged 7075-T6 aluminum upper and lower receivers, finished in matte black Type III hard-coat anodize, that Colt has been supplying to military and law enforcement for decades. The 11.5" barrel is chrome-lined with a manganese phosphate exterior, running a 1:7 right-hand twist through six grooves and threaded 1/2×28 at the muzzle for suppressor or muzzle device compatibility. A direct impingement carbine-length gas system keeps things reliable and familiar. The Magpul K2 grip, mil-spec BCG, and charging handle round out a configuration that's genuinely ready to run.
The handguard here is worth calling out specifically. Colt's free-float M-LOK rail spans roughly 10.5 inches and incorporates a full-length M1913 Picatinny top rail alongside seven orientations of M-LOK attachment surfaces. It also has integrated steel QD sling swivel sockets and anti-rotation tabs built right in, so you're not shopping for a sling adapter on day one. That's a meaningfully better setup than the old fixed carbine handguards you'll find on earlier Colt pistol configurations. The SB Tactical SBA5 brace rides on a 6-position mil-spec extension, adjusts through five positions collapsed to extended, and features an ambidextrous QD sling socket along with an arm cuff for an additional point of contact when shooting.
The chrome-lined bore is one of those things that quietly matters more over time than it does on day one. It resists heat, corrosion, and wear better than a standard phosphate bore, which pays off if you put serious round counts through it or run it suppressed. The 1:7 twist rate handles the full spectrum of common 5.56 loads well, from 55-grain XM193-style ammo up through heavier 77-grain projectiles. At 5.9 pounds unloaded and an overall length that collapses down to around 28 inches, this is a genuinely handy package compared to a full-length M4 carbine. It ships with one 30-round Magpul PMAG, ships no sights, so you'll want to budget for an optic or irons.
No, this model ships without any iron sights installed. The full-length Picatinny top rail is ready for whatever optic or sight setup you prefer, whether that's a red dot, LPVO, or flip-up backup irons. It's a clean flat-top configuration, so you have full flexibility from the start.
Yes. The 11.5" barrel features a chrome-lined bore and chamber with a manganese phosphate exterior finish. Chrome lining extends barrel life, makes cleaning easier, and provides better resistance to heat and corrosion over time, which is especially relevant if you plan to shoot it suppressed or run it hard.
It accepts standard AR-15 pattern magazines, which is about the most common mag format out there. The included 30-round Magpul PMAG is a great starting point, and you can run virtually any standard STANAG-compatible AR magazine alongside it.
The SB Tactical SBA5 is a 5-position adjustable brace that mounts to the mil-spec carbine receiver extension. It features an arm cuff with an adjustable nylon strap and an integral ambidextrous QD sling socket. It provides an additional point of contact to improve stability and control when shooting the pistol, and the 5-position adjustment lets you dial in the fit for your build.
The barrel is threaded 1/2×28, which is the standard thread pitch for 5.56 AR pistols and is compatible with the vast majority of suppressors on the market. The flash hider that ships with it can be removed and replaced with your can of choice. The chrome-lined barrel is also a plus here since it holds up better to the added heat and back-pressure of suppressed fire.
Buying a factory Colt gets you mil-spec quality control, a chrome-lined barrel, a tested BCG, and a complete configuration without sourcing and assembling individual parts. For many people, the peace of mind of a fully factory-built, serialized pistol from one of the most historically significant AR manufacturers is worth it on its own. It also ships as a complete package with the SBA5 brace and a Magpul PMAG already included.
| UPC | 098289002006 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | M4P6933 |
| Action | |
| Barrel Length | 11.5" |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Capacity | 30 |
| Color | Black |
| Length | 7.5'' |
| Magazine Included | 1 x 30-Round |
| Model | |
| Product Type | AR |
| Safety | Manual Safety |
| Shipping Weight | 8.2 |
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