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Sharps Bros The Jack Stripped Lower Receiver (SBLR03) on a AR-15

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 part

Opens 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