Description
The Bushmaster E2S AR-15 Modular Carbine is a versatile, ready-to-shoot rifle chambered in 5.56mm/.223 Remington. It features a fluted barrel for heat dissipation, includes flip-up iron sights for immediate use, and comes with a 30-round magazine. This model is designed as a value-oriented, modular platform that requires no gunsmithing required to get started, offering a solid foundation for both new and experienced shooters.
Key Features
- Fluted Barrel: The 16-inch barrel uses fluting to reduce weight and improve cooling, a practical upgrade over a standard government profile.
- Flip-Up Sights Included: Comes with front and rear MBUS-style sights, saving you $80-$100 right out of the gate.
- Modular E2S Upper: Features a forward-assist and dust cover, with a full-length Picatinny rail for optics and accessories.
- Complete Package: Ships with one 30-round magazine, so you can head to the range immediately after your FFL transfer.
- Budget-Conscious Build: Priced at $877.29, it undercuts many competitors while including sights—a major bang-for-buck factor.
Specifications & Details
| Caliber | 5.56 NATO / .223 Remington |
| Barrel | 16″ Fluted, 1:9 Twist |
| Overall Length | 32″-35″ (Collapsed to Extended) |
| Weight (Unloaded) | Approx. 6.5 lbs |
| Magazine Capacity | 30 Rounds (1 included) |
| Receiver Material | Forged 7075-T6 Aluminum |
The rifle’s 1:9 twist rate handles a wide range of common 55-62 grain ammunition effectively. Its six-position collapsible stock provides adjustability for different arm lengths and body types, a simple but crucial feature for a good fit. The carbine-length gas system is a proven, reliable design that works with most mil-spec components. Look, the real value here is in the details you don’t have to pay extra for—like the included sights and the functional fluted barrel that adds performance without a boutique price tag.
Who This Rifle Is For
This Bushmaster is ideal for the budget-minded shooter seeking a dependable, no-fuss first AR-15. It’s also a smart pick for experienced owners wanting a spare rifle or a modular base for future upgrades without the guilt of modifying a more expensive gun. If your goal is practical range use, introductory tactical training, or a reliable home defense tool, this carbine checks those boxes without unnecessary extras that inflate cost. The modular design means you can easily swap handguards, grips, or triggers down the line as your needs evolve.
Pros & Cons: The Practical Tradeoffs
Pros: The included flip-up sights are a huge value add, making it truly drop-in ready. The fluted barrel offers a tangible performance benefit over a plain barrel at this price point. Its compatibility with the vast ecosystem of AR-15 parts—from Magpul furniture to Geissele triggers—means you’re never locked in. Finally, at under $900, it’s positioned as a compelling alternative to base-model rifles from other major brands that often cost more with fewer features.
Cons: To hit this price, some corners are cut. The trigger is a standard mil-spec single-stage, which is functional but not exceptional. The handguard is a basic round design, which some find less ergonomic than modern M-LOK options. The 1:9 twist, while versatile, may not stabilize the heaviest 77+ grain match bullets as well as a 1:7 or 1:8 barrel. That said, these are all easy and affordable upgrades you can make later, which is the whole point of a modular platform.
Frequently Asked Questions
Q: Is the upper receiver compatible with other AR-15 lowers?
A: Yes, absolutely. The Bushmaster E2S upper is built to standard mil-spec dimensions. It will fit and function reliably with any mil-spec AR-15 lower receiver, including popular brands like Anderson Manufacturing, Aero Precision, and Palmetto State Armory. This modularity is a core strength of the platform.
Q: What kind of accuracy can I expect from the fluted barrel?
A: With quality 55-grain or 62-grain ammunition, you can expect consistent 2-3 MOA accuracy, which is more than sufficient for most defensive, training, and recreational purposes. The fluting primarily aids in heat management during sustained fire, not necessarily tightening groups, but it does contribute to a better overall balance.
Q: Does it come ready to fire?
A: The rifle is fully assembled and functional. However, federal law requires it to be shipped to a licensed firearms dealer (FFL) for the transfer. Once you complete the background check at your chosen FFL, it is ready to load and shoot. Remember, FFL transfer required for firearm purchases is a standard, non-negotiable step.
When you stack up the features—fluted barrel, included sights, and a proven Bushmaster name—against its $877.29 price tag, the E2S Modular Carbine makes a strong case for itself in a crowded market. It’s a workhorse rifle that gets the fundamentals right without asking for a premium. This model is available at firearms-missouri.com for Missouri residents and nationwide to compliant states. See the product page for current availability and to start the simple purchase process.
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