Strength of a Machined Receiver With Universal Fit of a Forged Lower
Aero Precision’s M4E1 Stripped Lower Receiver delivers the strength and unique looks of a billet machined lower, with the lower cost, lighter weight, and easy parts compatibility of a forged lower. The M4E1 starts as an "enhanced" forging from extra-strong 7075 T6 aluminum that is precision machined to final dimensions for compatibility with all standard "mil-spec" AR-15 parts. As a bonus, the good-looking M4E1 has a streamlined profile, without the chunky appearance of many milled lowers.
Actually, the Aero Precision M4E1 Stripped Lower Receiver is not quite "stripped." Extra benefits include an integral triggerguard, which creates a more rigid, structurally sound receiver than a standard AR-15 lower, and also eliminates the risk of accidentally breaking off a triggerguard tab when working on the rifle. The enlarged triggerguard opening gives extra clearance so you can easily operate the trigger when wearing gloves.
The M4E1 comes with an easy-to-install threaded bolt catch roll pin that eliminates the risk of damaging the lower’s finish during installation (OK, you may be able to still do damage, but you’ll have to work hard at it!). Other features of the Aero Precision M4E1 stripped lower include:
- Flared magwell opening facilitates fast, one-shot mag changes
- Threaded takedown pin detent recess for easy buffer removal without chasing down a flyaway detent!
- Accepts standard mil-spec AR-15 fire control components, pistol grip, buffer tubes & stocks
- Hardcoat anodized to resist surface wear, in Matte Black or Cerakote™ Flat Dark Earth
The Aero Precision M4E1 Stripped Lower Receiver even has a polymer-tipped tensioning screw nestled in the grip tang that you can adjust for a tight, rattle-free fit with the upper receiver. All the benefits of a custom machined lower without the downside!
Big Book Catalog, Issue:71, Page:007
Replicas of Early .308 AR Hiders from the Late 1950s
The Brownells BRN-10 Flash Hiders are inspired by the two types of flash hider found on early .308 AR-pattern rifles - making them ideal to cap off the business end of your "Retro" battle rifle build.
The BRN-10 Open 3-Prong model replicates the hider found on Sudanese and early Dutch .308 ARs, while the Closed 3-Prong model replicates the hider found on many Portuguese and later production Dutch rifles. What’s the difference? The Closed model is more resistant to breaking if the muzzle accidentally strikes a hard surface (hence the change on the originals). The good news is that either model will give ANY AR-308 rifle a unique appearance - and do an excellent job reducing the fireball coming from the muzzle!
- Machined carbon steel
- Durable, hard black QPQ finish
- 5/8"-24 thread pitch
- Clearance hole: .320" - excellent for .308 rifles, as well as .243 Winchester, 6.5mm Creedmoor, etc.
Both Brownells BRN-10 Flash Hiders come with a modern-day high-tech QPQ finish that is far more durable than the Parkerized or black oxide finishes of the Old Days, yet replicates the matte black / dark gray finish of the originals. Complete your .308 AR battle rifle build with one today!
Big Book Catalog, Issue:71, Page:023