Description

Forged Fire/Safe Marked 80% Lower Assembly

Buy Polymer80 Forged Fire/Safe Marked 80% Lower Assembly – The Fastest 80% Build on the Planet in 2025

The Polymer80 Forged Fire/Safe Marked 80% Lower Assembly is the ultimate “cheater” package for anyone who hates tiny springs and roll pins. You get a brand-new forged 7075-T6 80% lower with deep laser-engraved FIRE/SAFE markings — plus these parts already professionally installed:

• Threaded bolt catch with screw (no roll pin)
• Front & rear takedown pin detents + springs (perfectly tensioned)
• Buffer retainer + spring (installed & staked)
• Magazine catch assembly (button, spring, catch – pre-installed)

That’s four of the most annoying steps in an AR-15 build done for you at the factory — saving you 20–40 minutes and a mountain of frustration. All you do is mill the fire-control pocket, drop in your LPK and stock, and you’re shooting. In stock now at Polymer80 USA — same-day discreet shipping.

What’s Actually Included in the Assembly

• Forged 7075-T6 80% lower (Type III hardcoat black or raw)
• Deep laser-engraved FIRE / SAFE markings
• Threaded bolt catch pre-installed with 1/4-28 screw
• Front & rear takedown detents + springs (captured perfectly)
• Buffer retainer + spring (factory staked)
• Complete magazine catch assembly (ready for PMAGs)
• All critical dimensions within ±0.001″

Key Advantages – Why This Sells Out Every Drop

• Saves 30–45 minutes vs. standard 80% lowers
• No more launching takedown springs across the garage
• Threaded bolt catch = zero crushed threads forever
• Factory-perfect spring tension every single time
• Still 100% legal 80% lower (non-firearm until you mill)

Full 2025 Technical Specifications

How to Finish It – Now Even Faster (35–55 Minutes Average)

1. Clamp in your favorite jig
2. Drill & mill the fire control pocket (only step left!)
3. Install trigger group, pistol grip, and stock
4. You’re literally done — go shoot

No roll pins, no detents, no buffer retainer wrestling.

Packaging, Storage & Discreet Shipping

• Ships in protective foam with all pre-installed parts secured
• Plain brown box — zero markings
• Same-day shipping before 3 PM EST · Free over $149

Safety & Legal

• 100% ATF-compliant 80% lower until milled
• 18+ direct ship (auto-blocked in restricted states)

Real 2025 Customer Reviews

“Saved me from launching three takedown springs into orbit. Worth every penny.” – Tom H., Nevada “Finished my entire lower in 38 minutes start-to-finish. Threaded bolt catch is genius.” – Alex P., Georgia “Bought two — one raw for Cerakote, one black. Both ran 1,000 rounds flawlessly.” – Sarah L., Idaho

Frequently Asked Questions – Forged 80% Lower Assembly

Q: Can I still use a standard LPK? A: Yes — everything else is normal mil-spec.

Q: Is the mag catch left-handed friendly? A: Yes — standard reversible catch installed.

Q: Does it work with polymer 80% jigs? A: 100% — same dimensions as regular forged lowers.

Q: Are the pre-installed parts removable? A: Yes — standard mil-spec, you can swap if desired.

**These Sell Out in Hours Every time we drop a batch of assemblies, they’re gone the same day.

Add the game-changing Polymer80 Forged Fire/Safe Marked 80% Lower Assembly to your cart now — and finish your fastest, cleanest AR-15 build ever.