
AI illustration of a similar part on the gun.
AR-15 · Lower receiver
Sharps Bros The Jack Stripped Lower Receiver (SBLR03)
$290
Standard AR-15 lower for all five calibers. 7.62x39 steel mags can bind or fail to lock back in some magwells; an enhanced bolt catch or specific mag brand may be needed. .450 BM uses dedicated straight-wall mags that fit a standard magwell.
Build with this partOpens the builder with this part fitted. Other parts change only if they have to.
Pros and cons
Pros
- Milled from solid 7075-T6
- Oversized trigger guard, beveled magwell
- Mil-spec internal parts fit
Cons
- Bold skull-style styling not to all tastes
- Pricey for mil-spec controls
Other lower receiver options
- Aero Precision M4E1 Stripped Lower Receiver $155
- Geissele Automatics Super Duty Stripped Lower Receiver $175
- Spike's Tactical Spider Stripped Lower Receiver $107
- Centurion Arms CM4 Forged Stripped Lower Receiver $135
- Palmetto State Armory Sabre-15 Ambi Lower Receiver $100
- Griffin Armament Mk2 Ambidextrous Stripped Lower Receiver $220
- American Defense Manufacturing UIC Ambidextrous Stripped Lower Receiver $370
- Radian Weapons AX556 Ambidextrous Lower Receiver $450
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