The Magpul SL-K Lower Build Kit Minus FCG includes everything you need to finish your lower receiver except the trigger group. This kit allows builders to save time and money by purchasing the bundle while allowing them select their own upgraded trigger.

Magpul SL-K Stock
(Compared to the standard SL stock, the SL-K has a smaller profile, does not include integrated QD mount, does not include internal anti-rattle feature)

• Choose from Black, FDE, OD Green or Grey
• Mounts on mil-spec sized carbine receiver extension tube (not included) from manufacturers such as Colt, LMT, Ruger, S&W, SIG, and others
• Sloping cheek weld combines a slim profile with user comfort
• Dual-side release latch provides easy adjustment while remaining anti-snag
• Premium chrome-silicon lock spring provides positive locking and long service life
• Compact rubber butt-pad offers an anti-slip surface and increases impact protection
• Rollover on the toe allows for easier shoulder transitions and better fit when using body armor
• Compatible with Magpul ASAP®, ASAP® QD, and other receiver-mount sling attachments
• 1.25” Footman’s Loop for sling mounting, and also accepts the M-LOK QD Sling Mount for push-button sling attachment (sold separately)

Magpul SL Grip 

• Choose from Black, FDE, OD Green or Grey
• More vertical grip angle than standard A2 grips
• Beavertail backstrap for enhanced ergonomics
• Slimmer thickness for a slightly smaller feel
• Aggressive TSP texture (Trapezoidal Surface Projections) for positive weapon control in all environments

Dirty Bird AR-15 True Mil-Spec Carbine Receiver Extension / Buffer Kit

• 100% American Made Kit
• 7075-T6 Aluminum 6-Position Mil-Spec Receiver Extension (7075-T6 Aluminum is nearly twice as strong as 6061)
• 3oz Carbine Recoil Buffer w/ Steel Counter Weights
• Hardened Castle Nut w/ Staking Cuts
• Mil-Spec End Plate

Dirty Bird AR-15 Lower Parts Kit Minus FCG & Pistol Grip

• 100% American Made Kit
• Includes extra takedown / pivot pin detent and detent spring
• Includes enhanced polymer trigger guard