Battle Arms Development Enhanced Lower Parts Kit Package 3 - Premium AR-15 Upgrade SetBattle Arms Development$34.95
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Battle Arms Development
The Battle Arms Enhanced Complete Lower Parts Kit in steel black delivers a thoughtfully engineered collection of investment-cast components designed to upgrade your AR-15 build beyond mil-spec baseline quality. This Battle Arms Development kit combines proven control surfaces with precision CNC and investment-cast manufacturing to give you a more robust lower receiver assembly—all without the inflated cost of full-custom shops. If you're building a rifle that needs to run reliably and feel good in your hands without breaking the bank, this kit gives you the parts to make it happen.
The standout upgrades here are purpose-driven: the Enhanced Bolt Catch uses investment-cast 8620 heat-treated steel with a manganese phosphate finish for durability at a practical price point. The single-sided Enhanced Safety Selector draws from Battle Arms' design heritage, offering diagonal serrations and mil-spec compatibility. The Enhanced Magazine Release (BAD-EMR) is CNC-machined from billet 7075-T6 aluminum with a distinctive V-shaped button face and horizontal serrations that ergonomically self-center your index finger. The included Adjustable Tactical Grip (BAD-ATG) lets you dial in your preferred angle—17, 25, or 33 degrees—with the provided hex key, so you're not locked into someone else's compromise.
The Enhanced Takedown and Pivot Pins (BAD-EPS) feature improved gripping surfaces with low-profile heads that won't interfere with ambidextrous safety operation. The kit includes everything you need: hardened stainless steel detents, nickel-plated pin springs, and a neodymium magnet to simplify assembly. You also get a mil-spec trigger and hammer assembly with nickel Teflon finish, all springs, detents, and the trigger guard roll pin—everything required for a complete lower receiver build.
Battle Arms Development has focused on the details that matter: ergonomics, material quality, and real-world usability. This isn't overcomplicated or gimmicky; it's a well-thought-out kit that works for hunters, range shooters, and builders who want their AR to feel as good as it functions.
| Brand | Battle Arms Development |
| Product Type | Complete Lower Parts Kit |
| Compatibility | AR-15, M16, M4 with mil-spec dimensioned lower receivers |
| Finish | Black phosphate (bolt catch, safety selector); anodized black (magazine release); textured (grip) |
| Bolt Catch Material | Investment-cast 8620 heat-treated steel |
| Magazine Release Material | Billet 7075-T6 aluminum |
| Tactical Grip Weight | 3.0 oz (complete with screw and washer) |
| Magazine Release Weight | 0.25 oz (vs. 0.32 oz mil-spec) |
| Grip Angle Options | 17°, 25°, 33° |
| Takedown/Pivot Pins | Extended tips (+0.030" over mil-spec); low-profile heads |
| Included Springs & Detents | KNS hardened stainless steel detents; 17-7 nickel-plated stainless steel springs |
| Included Accessories | Hex key; neodymium magnet for assembly |
Yes, provided your lower receiver has mil-spec dimensioned pin holes and magazine release pocket. The kit is designed for all standard AR-15, M16, and M4 lower receivers with mil-spec .250" diameter front pivot and rear takedown pin holes.
The kit includes the Enhanced Bolt Catch, Enhanced Safety Selector, Enhanced Magazine Release, Adjustable Tactical Grip (with three angle options and hex key), Enhanced Takedown and Pivot Pins, mil-spec trigger and hammer assembly with nickel Teflon finish, all required springs and detents, the trigger guard and roll pin, and a neodymium magnet to assist with assembly. Everything needed to complete a lower receiver build.
Yes. The included Adjustable Tactical Grip (BAD-ATG) offers three proven grip angles: 17°, 25°, and 33°. You can dial it in to your preferred angle using the included hex key, so you're not stuck with a one-size-fits-all design.
The Enhanced Safety Selector included in this kit is single-sided. However, the Enhanced Takedown Pin design does not obstruct right-side ambi safety selector levers if you choose to add an ambidextrous option separately.
Battle Arms Development
The Battle Arms Enhanced Complete Lower Parts Kit in steel black delivers a thoughtfully engineered collection of investment-cast components designed to upgrade your AR-15 build beyond mil-spec baseline quality. This Battle Arms Development kit combines proven control surfaces with precision CNC and investment-cast manufacturing to give you a more robust lower receiver assembly—all without the inflated cost of full-custom shops. If you're building a rifle that needs to run reliably and feel good in your hands without breaking the bank, this kit gives you the parts to make it happen.
The standout upgrades here are purpose-driven: the Enhanced Bolt Catch uses investment-cast 8620 heat-treated steel with a manganese phosphate finish for durability at a practical price point. The single-sided Enhanced Safety Selector draws from Battle Arms' design heritage, offering diagonal serrations and mil-spec compatibility. The Enhanced Magazine Release (BAD-EMR) is CNC-machined from billet 7075-T6 aluminum with a distinctive V-shaped button face and horizontal serrations that ergonomically self-center your index finger. The included Adjustable Tactical Grip (BAD-ATG) lets you dial in your preferred angle—17, 25, or 33 degrees—with the provided hex key, so you're not locked into someone else's compromise.
The Enhanced Takedown and Pivot Pins (BAD-EPS) feature improved gripping surfaces with low-profile heads that won't interfere with ambidextrous safety operation. The kit includes everything you need: hardened stainless steel detents, nickel-plated pin springs, and a neodymium magnet to simplify assembly. You also get a mil-spec trigger and hammer assembly with nickel Teflon finish, all springs, detents, and the trigger guard roll pin—everything required for a complete lower receiver build.
Battle Arms Development has focused on the details that matter: ergonomics, material quality, and real-world usability. This isn't overcomplicated or gimmicky; it's a well-thought-out kit that works for hunters, range shooters, and builders who want their AR to feel as good as it functions.
| Brand | Battle Arms Development |
| Product Type | Complete Lower Parts Kit |
| Compatibility | AR-15, M16, M4 with mil-spec dimensioned lower receivers |
| Finish | Black phosphate (bolt catch, safety selector); anodized black (magazine release); textured (grip) |
| Bolt Catch Material | Investment-cast 8620 heat-treated steel |
| Magazine Release Material | Billet 7075-T6 aluminum |
| Tactical Grip Weight | 3.0 oz (complete with screw and washer) |
| Magazine Release Weight | 0.25 oz (vs. 0.32 oz mil-spec) |
| Grip Angle Options | 17°, 25°, 33° |
| Takedown/Pivot Pins | Extended tips (+0.030" over mil-spec); low-profile heads |
| Included Springs & Detents | KNS hardened stainless steel detents; 17-7 nickel-plated stainless steel springs |
| Included Accessories | Hex key; neodymium magnet for assembly |
Yes, provided your lower receiver has mil-spec dimensioned pin holes and magazine release pocket. The kit is designed for all standard AR-15, M16, and M4 lower receivers with mil-spec .250" diameter front pivot and rear takedown pin holes.
The kit includes the Enhanced Bolt Catch, Enhanced Safety Selector, Enhanced Magazine Release, Adjustable Tactical Grip (with three angle options and hex key), Enhanced Takedown and Pivot Pins, mil-spec trigger and hammer assembly with nickel Teflon finish, all required springs and detents, the trigger guard and roll pin, and a neodymium magnet to assist with assembly. Everything needed to complete a lower receiver build.
Yes. The included Adjustable Tactical Grip (BAD-ATG) offers three proven grip angles: 17°, 25°, and 33°. You can dial it in to your preferred angle using the included hex key, so you're not stuck with a one-size-fits-all design.
The Enhanced Safety Selector included in this kit is single-sided. However, the Enhanced Takedown Pin design does not obstruct right-side ambi safety selector levers if you choose to add an ambidextrous option separately.
