B5 Systems Bravo AR-15 Complete Lower Build Kit with Polished Trigger (PPT)
Upgrade or complete your stripped lower receiver with the ultimate all-in-one upgrade package. This premium AR-15 Complete Lower Build Kit combines the ergonomic excellence of B5 Systems furniture with a high-performance Polished Trigger (PPT) Lower Parts Kit and a rugged, reliable Mil-Spec 6-position buffer tube assembly. Whether you are starting a new rifle build or upgrading an existing platform, this kit provides everything required to finish your lower with duty-ready components.
Premium B5 Systems Furniture & Enhanced PPT Fire Control Group
At the core of this kit is the operator-favorite B5 Systems Bravo Stock, paired perfectly with the B5 Pistol Grip and B5 Trigger Guard for enhanced ergonomics, recoil management, and weapon control. Unlike standard, gritty combat-style triggers, the included Polished Trigger (PPT) features an electroless nickel coating and meticulously polished contact surfaces. This delivers a crisp, smooth, single-stage, target-style trigger pull that drastically improves accuracy and shot-to-shot consistency.
Key Features
- All-In-One Lower Build Kit: Eliminates the guesswork by providing every single component needed to complete a stripped AR-15 lower receiver.
- B5 Systems Upgrades: Includes the iconic B5 Systems Bravo Stock, ergonomic pistol grip, and oversized trigger guard.
- Polished Trigger (PPT) LPK: Features an electroless nickel-coated, single-stage fire control group for a smoother, crisp break.
- Mil-Spec Buffer Assembly: Durable 6-position buffer tube machined to Mil-Spec diameters for maximum stock compatibility and smooth cycling.
Complete Component Breakdown
Fire Control Group (PPT)
- AR-15 Hammer & Hammer Spring
- AR-15 Trigger & Trigger Spring
- Polished Contact Surfaces with Electroless Nickel Coating
- Trigger/Hammer Pins
- Disconnector & Disconnector Spring
Mil-Spec Buffer Tube Assembly
- 6-Position Mil-Spec Diameter Buffer Tube
- Standard AR-15 Buffer & Buffer Spring
- Castle Nut & Latch Plate
- Buffer Retainer Detent & Buffer Retainer Detent Spring
Takedown & Pivot Pin Assembly
- Takedown Pin & Pivot Pin
- Takedown Springs (3)
- Takedown Detents (3)
Bolt Catch Assembly
- Bolt Catch
- Bolt Catch Detent & Spring
- Bolt Catch Roll Pin
Compatibility
This kit is compatible with standard, Mil-Spec AR-15 stripped lower receivers. Ideal for home builders, enthusiasts, and armorers looking for a premium tier upgrade over standard GI lower parts kits.
