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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Out of stock
Spuhr - Spacer 4mm - A-0001
Spuhr
$30.00Spacer for Spuhr Interface. Height: 4 mm/.157” Weight: 7 g/0.2 oz Includes screws.$30.00 -
Out of stock
Spuhr - ACI Mount Non QD - A-0023
Spuhr
$73.00Interface for attaching Sniper Tools and Nightforce Angle Cosine and Angle Degree Indicators to ISMS scope mount or rings. The ACI is held in place against the A-0023 by two M3 Torx 10 screws, requiring the ACI to be attached or removed using a Torx 10...$73.00 -
Out of stock
Spuhr - Picatinny Rail - A-0032
Spuhr
$62.50Picatinny interface for attaching 3rd party accessories with Picatinny clamps to the ISMS scope mount. Includes screws. Height: 14 mm/0.55” Length: 75 mm/2.95” Weight: 31 g/1.1 oz$62.50 -
Out of stock
Spuhr - Leveling Kit for Separate Rings - A-0080/81
Spuhr
$35.00Leveling kit for indexing the reticle to the Picatinny Rail. Included with SR-series of rings. Cannot be used with Weaver rails, ISMS unimounts or ISMS cantilever mounts. Included with all SR-series rings. Note: Minimum clearance 3 mm (0.118")$35.00 -
Out of stock
Unity Tactical - Hot Button M-LOK FDE - HBM-NFV
Unity Tactical
$272.00Hot Button is a revolutionary control device for weapon-mounted electronic accessories. It provides a 45 degree angle button interface for a more natural press angle at any position around a weapon hand guard. The up-angled button also provides an...$272.00 -
Out of stock
Unity Tactical - Hot Button MILSPEC Rail Mount Laser FDE - HBR-IF
Unity Tactical
$119.00Hot Button is a revolutionary control device for weapon-mounted electronic accessories. It provides a 45 degree angle button interface for a more natural press angle at any position around a weapon hand guard. The up-angled button also provides an...$119.00 -
Out of stockOn Sale
Unity Tactical - Fusion Fixed Front Site - FUS-S2B
Unity Tactical
Now: $47.00Was: $52.00FUSION is a series of modular weapon mount components that provide users a configurable solution for placing accessories such as lights and lasers. FUSION provides opportunity for making micro adjustment to the placement of accessories, providing users...Now: $47.00Was: $52.00 -
Out of stockOn Sale
Unity Tactical - Fusion Folding Sight FDE - FUS-S1F
Unity Tactical
MSRP: $96.00Now: $87.00Was: $96.00FUSION is a series of modular weapon mount components that provide users a configurable solution for placing accessories such as lights and lasers. FUSION provides opportunity for making micro adjustment to the placement of accessories, providing users...MSRP: $96.00Now: $87.00Was: $96.00 -
Out of stockOn Sale
Unity Tactical - Fusion Micro Hub Base FDE - FUS-MHF
Unity Tactical
Now: $69.00Was: $76.00FUSION is a series of modular weapon mount components that provide users a configurable solution for placing accessories such as lights and lasers. FUSION provides opportunity for making micro adjustment to the placement of accessories, providing users...Now: $69.00Was: $76.00 -
Out of stock
Unity Tactical - Fusion Micro Hub Base Black - FUS-MHB
Unity Tactical
$76.00FUSION is a series of modular weapon mount components that provide users a configurable solution for placing accessories such as lights and lasers. FUSION provides opportunity for making micro adjustment to the placement of accessories, providing users...$76.00 -
Out of stockOn Sale
Unity Tactical - SPARK Marker Light - SPK-WV1
Unity Tactical
Now: $16.00Was: $18.00SPARK is a personal identification/marking light in a small footprint. Originally designed for industrial safety applications, SPARK is a practically unnoticeable addition to helmets, plate carriers, chest rigs, or virtually any item requiring...Now: $16.00Was: $18.00 -
Out of stockOn Sale
Unity Tactical - Spark Marker Light IR - SPK-IV1
Unity Tactical
Now: $16.00Was: $18.00SPARK is a personal identification/marking light in a small footprint. Originally designed for industrial safety applications, SPARK is a practically unnoticeable addition to helmets, plate carriers, chest rigs, or virtually any item requiring...Now: $16.00Was: $18.00