Parts & Accessories
Shop AR-15 and AR-10 parts and accessories from Boss Firearms. Our parts inventory includes LMT upper and lower receivers, Proof Research carbon fiber barrels, Forward Controls Design components, Geissele triggers, Magpul furniture, BCM parts, SureFire lights, and much more. Whether you're building a new rifle or upgrading your current setup, we carry the hard-to-find components trusted by military, law enforcement, and serious civilian shooters.
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Forward Controls Design Augmented Bolt Catch For LMT MARS-L Black
Forward Controls Design, Inc
$58.00The Forward Controls Design Augmented Bolt Catch for LMT MARS-L (ABC/R v3 MARS-L) is FCD's ABC/R v3 bolt catch specifically dimensioned and designed for use with the LMT MARS-L ambidextrous lower...$58.00 -
Out of stock
FCD Forward Controls Design Low Snag Forward Assist Serrated #LSFA
Forward Controls Design, Inc
$45.60The advent of the ambidextrous charging handle, along with other ambidextrous controls, is a boon for AR15/M16 users, but it is not without unintended consequences. The forward assist rim is in the...$45.60 -
FCD Forward Controls Design Rail Cover, Picatinny 1.7" RCP1.7
Forward Controls Design, Inc
$11.40The Forward Controls Design Picatinny Rail Cover 1.7" (RCP1.7) is FCD's short-length Picatinny rail cover for protecting unused MIL-STD-1913 Picatinny rail slots on AR-15 uppers, handguards, and...$11.40 -
FCD Forward Controls Design Rail Cover, Picatinny 3.3"RCP3.3
Forward Controls Design, Inc
$15.20The Forward Controls Design Picatinny Rail Cover 3.3" (RCP3.3) is FCD's medium-length Picatinny rail cover for protecting unused sections of MIL-STD-1913 Picatinny rail. The RCP (Rail Cover,...$15.20 -
Out of stock
FCD Forward Controls Design Rail Cover Picatinny 6.43" #RCP6.43
Forward Controls Design, Inc
$19.95RCP (Rail Cover, Picatinny) is a 1913 / Picatinny rails panel with the AA (All Angles), or dimpled texture. We use the dimpled surface on applications where it makes sense: bolt catches, magazine...$19.95 -
Out of stock
Colt M-16 Lower Parts Kit - Full Auto
Colt
$199.99Includes: M-16 Fire Control Group Fire Control Group Pins and Springs M-16 Sear Sear Spring Sear Pin Bolt Catch Assembly Mag Catch Assembly Front Pivot Pin Rear Takedown Pin (2) Takedown Pin...$199.99 -
Out of stock
Aimpoint Patrol Rifle Optic Red Dot Reflex Sight - QRP2 Mount 12841 - Police Trade-In
Aimpoint
$350.00The Aimpoint® Patrol Rifle Optic (PRO) is built to withstand the toughest conditions encountered by law enforcement officers. This rugged and reliable red dot sight is designed to enhance target...$350.00 -
Two Vets Tripods Recon V2 Inverted Tripod - Vented Tubes, Rubber Twist Locks RECONV2LSI
Two Vets Tripods
$605.00Application PRS/NRL Style Matches Team Matches Hunting (Predator, Hog ) Back Woods Back Country Hunting Range Shooting Features: Inverted Leg Design - featuring top-positioned twist locks for...$605.00 -
Out of stock
LaRue Tactical MBT-2S Two-Stage Curved Trigger AR-10/AR-15 LTMBT2S
$134.99The LaRue Tactical MBT-2S Two-Stage Curved Trigger (LTMBT-2S) is one of the most acclaimed aftermarket AR-15 trigger upgrades on the market, delivering match-grade trigger performance at an...$134.99 -
Out of stock
LMT Defense AR-15 Standard Carbine Buffer - Aluminum Body, 3oz - L7A2F
LMT Defense
MSRP: $20.70$19.26The LMT Defense AR-15 Standard Carbine Buffer (L7A2F) is the mil-spec carbine buffer from Lewis Machine & Tool, designed for use in carbine-length buffer tubes with direct impingement and...MSRP: $20.70$19.26 -
Out of stock
LMT Defense AR-15 H2 Carbine Buffer - Aluminum Body, 4.6oz - #8448730B-M2
LMT Defense
MSRP: $53.40$49.59Features: Manufacturer: LMT Defense Type: Buffer Model: H2 Body Material: Aluminum Buffer Material: Polymer Weight: 4.6ozMSRP: $53.40$49.59 -
Out of stock
LMT Defense AR-15 H3 Carbine Buffer - Aluminum Body, 5.4oz - #LM308A8
LMT Defense
MSRP: $86.10$79.83Features: Manufacturer: LMT Defense Type: Buffer Model: H3 Body Material: Aluminum Buffer Material: Polymer Weight: 5.4ozMSRP: $86.10$79.83