Ar-15 M4 Stripped Upper Receiver Black Brownells
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Ar-15 M4 Stripped Upper Receiver Black Brownells.
A Solid Foundation for Your Next Custom Build
Sometimes you want the latest, updated, tweaked component, and sometimes you need a basic stripped receiver where the production effort goes into quality, rather than bells and whistles. The Brownells M4 Stripped Upper Receiver is that component - the perfect starting point for many an AR-15 build.
Starting with a 7075 T6 aluminum forging, our stripped M4 flattop upper is precision machined to final dimensions that make it compatible with the multitude of available "mil-spec" AR-15 components. It has a matte black, Type III hardcoat anodized finish, mirroring the military requirement.
- Machined from 7075-T6 aluminum forging
- Matte black Type III hardcoat anodized finish
- Mil-spec dimensions for maximum parts compatibility
- Standard .250" dia. pivot/takedown pin holes
- T-marked Picatinny top rail
Inside our upper features M4 feed ramps to aid in chambering during high rates of fire. And outside the T-marks in the Picatinny rail’s slots are painted to aid in fast exchanges of optics.
Please note: this is a truly stripped upper receiver, with NO forward assist or ejection port cover installed, so you can truly customize every aspect of your rifle. The Brownells M4 Stripped Upper Receiver is a top-tier upper receiver, at a great price.
Big Book Catalog, Issue:71, Page:002
Sba3 Pistol Stabilizing Brace 5-Position Adjustable Sb Tactical.
5 Positions for Maximum Versatility
The SB Tactical SBA3 Pistol Stabilizing Brace adds 5 positions of adjustments for the perfect fit as well as offering all of the benefits of a pistol arm brace.
The minimalist design features compatibility with a standard mil-spec carbine receiver extension, an ambidextrous QD socket, and an adjustable nylon strap.
- 5-position pistol stabilizing brace
- Includes Mil-Spec carbine extension
- Fits: Mil-Spec AR15 receivers
- Weight: 6.75 oz.
- 6.1” long and 1.8” wide
Available in both black and flat dark earth, the SB Tactical SBA3 Pistol Stabilizing Brace is a great addition to your next AR pistol build.
Does not include the lock nut or end plate. Those will need to be purchased separately.
Big Book Catalog, Issue:71, Page:050
Ar-15 80% Lower Receiver Forged Matrix Arms.
An AR Lower Shipped Straight to Your Front Door
The Matrix Arms 80% Forged AR-15 Lower Receiver takes the DIY AR build to the next level for the dedicated AR owner, giving them the chance to machine out the interior pocket themselves for the ultimate AR project.
The Matrix Arms 80% Forged AR-15 Lower Receiver includes all of the exterior machining done for you and only needs the interior pocket for the hammer and trigger machined in order to make it a fully functioning lower.
- Constructed from 7075-T6 aluminum
- Can be had in unfinished or black anodized finishes
- Does not have to be shipped to an FFL dealer
- Stamped with S & F on both sides
The Matrix Arms 80% Forged AR-15 Lower Receiver also features a take-down lug pocket and is a great way to take on an advanced AR build.
Returns will not be accepted once the receiver is modified in any way. All warranty issues will be directed to the manufacturer.
Big Book Catalog, Issue:71, Page:008
Ar-15 30rd Magazine Cs 223/5.56 Brownells.
The Most Up-To-Date & Reliable Civilian Magazine Available
A battle rifle is only as reliable as its magazine – make sure the one in your rifle is from Brownells. When the difference between a “bang” and a “click” is life and death, a magazine failure is more than inconvenient – it can be fatal. So when we decided to build our own AR-15/M16 magazines, reliability was our first priority. Some of us have sons and daughters serving overseas or in law enforcement, and we aimed to build the kind of magazine we’d trust their lives with. We started with a clean slate, then worked out the bugs on the drawing board and the test range before we offered a single mag for sale, so you get a magazine of uncompromising quality and reliability that’s built to last and ready to run hard. When failure is not an option, these magazines deliver on the range, in the field, in a tactical situation, under fire. Load these smooth-feeding magazines to maximum capacity and fire the full 30 rounds you expect. No jams, no misfeeds, no hangups.
All components are made of mil-spec materials and are manufactured under strict, ISO quality control standards. The heat-treated, welded aluminum body is hard-anodized for superior corrosion resistance, then given a tough, dry-lube coating to eliminate the need for additional lubricants that would attract dust, sand, or dirt. The latest military-type, glass-fiber reinforced composite follower further guarantees flawless feeding in the harshest tactical conditions. Choose from our high lubricity, dry-lube-coated chrome silicon spring that’s corrosion-resistant certified to 500 hour salt spray standards, and less prone to spring “set.” Updated material and design features like those in our 30-round magazine have been adapted to our straight-bodied, 20-round model. All models are available in standard military Gray. Since we manufacture these mags ourselves, we can maintain a large inventory. So, if you need magazines in a hurry, even in quantity, we can get them to you ASAP.
AR-15, Issue:11, Page:059
Big Book Catalog, Issue:71, Page:066
Sinclair, Issue:5B, Page:247
SPECS: Aluminum body, hard-anodized, dry-lube coating. Fiberglass-filled plastic follower. Magazine available in Gray with dry-lube-coated chrome silicon (CS) spring. 30-round capacities.Learn More
Ar-15 Advanced Combat Bolt Assembly 6.8 Spc Ii/224 Valkyrie Lwrc International.
Upgraded Design For Increased Durability & Dependability
Updated design of the standard AR-15 bolt features a fully supported breech face and a dual-spring extractor system for extra strength and reliability to handle the 6.8 Remington SPC II or 224 Valkyrie cartridge. Machined from an extremely hard steel alloy normally used in high-stress/heat applications like race car transmissions, then shot-peened and x-rayed for flaws before plating with a nickel-boron (NiB) coating. NiB coating significantly reduces friction coefficient, so the bolt is less likely to be hung up by fouling, and wear-resistance is greatly enhanced. Super-slick surface makes cleanup easy because carbon and gunk have a hard time sticking to it.
AR-15, Issue:11, Page:013
Big Book Catalog, Issue:71, Page:013
SPECS: Ultra-hard steel alloy, nickel-boron plated, silver finish. Comes complete with ejector, extractor, and gas rings installed. Fits a standard AR-15 carrier.Learn More