Can I fire .45 GAP rounds in the Glock 21 (chambered for .45 ACP)?

[Mateo]

Can I fire .45 GAP rounds in the Glock 21 (chambered for .45 ACP)?

[NeedF0rS1eep]

Only once.

[vv424]

No. It’s the 45 gap is too big

[SBR_AK_is_best_AK]

NO

[2alife]

Most people would need the answer to the question the other way around. You’re lucky (I guess) to actually have .45 GAP.

[nta1646]

No.

[No_Profession_8932]

Try and see.